【０００１】[0001]
【産業上の利用分野】本発明は水稲栽培の省力化に関す
るものである。特に水稲栽培の育苗においての病虫害防
除のための稲籾種子の農薬による浸漬消毒、移植後の病
虫害防除のための育苗箱への農薬粒剤施用や液剤散布、
もしくは移植後の病虫害防除等のための本田農薬散布を
必要としない農薬被覆稲籾種子を提供するものである。TECHNICAL FIELD The present invention relates to labor saving in paddy rice cultivation. In particular, sowing and disinfection of rice paddy seeds with pesticides for controlling pests and diseases in raising seedlings in paddy rice cultivation, application of pesticide granules and liquid agent spraying to nursery boxes for controlling pests and diseases after transplanting,
Alternatively, the present invention provides a pesticide-coated rice paddy seed that does not require the spraying of a pesticide on Honda for controlling pests and diseases after transplantation.
【０００２】[0002]
（国内における水稲栽培の現状と問題点）水稲の栽培方
法は多岐にわたりその技術は多様化している。その原因
はその土地の風土に適合した栽培条件が組み込まれるか
らである。また稲作の低コスト指向のなかで水田の大型
化、共同営農のほかに栽培技術の進歩として、とりわけ
種子消毒から移植の間の省力と時間の短縮は極めて重要
である。(Current situation and problems of paddy rice cultivation in Japan) The cultivation methods of paddy rice are diverse and the technologies are diversified. The reason for this is that cultivation conditions suitable for the local climate are incorporated. In addition to increasing the size of paddy fields and joint farming in order to reduce the cost of rice cultivation, it is extremely important to save labor and reduce the time from seed disinfection to transplantation, especially as the progress of cultivation technology.
【０００３】水稲栽培方法は多岐多様とはいえ大別すれ
ば 育苗−機械移植栽培と、直播栽培になる。しか
しはごく限られた地域で行われているにすぎず増加傾
向は鈍く、大部分はの箱育苗（稚苗、乳苗）−機械移
植にて栽培される。この間の作業は(1) 種子消毒（２
日）→(2) 浸種（７〜１０日）→(3) 催芽（２日）→
(4) 播種・覆土・芽出し（２日）→(5) 育苗（緑化・硬
化約３週間）→(6) 農薬処理（移植前数日〜当日の箱施
用）(7) 機械移植される．これらの作業日程は兼業農家
にとって短期間に集中した異常な負担であり専業農家と
いえども同様である。特に(1) 種子消毒、(6) 農薬粒剤
或いはその調製物の育苗箱施用は煩わしい作業と言わざ
るをえない。即ち(1) はモミに対する適正薬液量の調
製、更に使用済薬液の処分は悪影響の無い場所での埋め
立て処分や、その目的のために開発された市販の吸着処
理装置を使用しなければならず、魚毒の強いものについ
ては河川への流入は厳禁である。また(6) は屋外での降
雨時、粒剤の育苗箱施用は粒剤がぬれて団粒になった
り、手に着いたりして好ましくない。更にぬれたイネの
茎葉には粒剤が付着し易くその後薬斑が発生することが
あって生育上好ましくない。また希釈液剤散布では育苗
箱当たりの散布量が不均一になり易い等の欠点を有して
いる。Although there are various methods for cultivating paddy rice, they can be broadly classified into seedling-mechanical transplant cultivation and direct seeding cultivation. However, this is only done in a very limited area, and the increasing trend is slow, and most of them are cultivated by box-growing (seedlings, seedlings) -machine transplantation. Work during this period is (1) Seed disinfection (2
Sun) → (2) Immersion (7-10 days) → (3) Germination (2 days) →
(4) Seeding / covering / sprouting (2 days) → (5) Raising seedlings (greening / hardening for about 3 weeks) → (6) Pesticide treatment (several days before transplantation to box application on the day) (7) Mechanical transplantation. These work schedules are abnormal loads that are concentrated in a short period of time for part-time farmers and are the same for full-time farmers. In particular, (1) seed disinfection and (6) application of pesticide granules or their preparations in nursery boxes must be said to be a troublesome work. In other words, (1) requires the preparation of an appropriate amount of chemical solution for fir and the disposal of used chemical solution by landfill disposal in a place where there is no adverse effect, and the use of a commercial adsorption treatment device developed for that purpose. As for fish poisonous, it is strictly prohibited to enter the river. Further, (6) is not preferable to apply the granules in the nursery box when it is raining outdoors, because the granules get wet to form aggregates or get on the hands. Furthermore, granules tend to adhere to wet rice foliage, which may cause spots to develop, which is not preferable for growth. Further, spraying the diluted liquid agent has a drawback that the spray amount per seedling raising box tends to be uneven.
【０００４】（従来の農薬処理稲籾種子）従来、特に日
本では、農薬処理モミは主に、イネ馬鹿苗病、イネ芯枯
センチュウ対応薬剤により浸漬処理されている。更に、
タネモミの栽培用として稲籾種子に、農事試験場、農協
などにおいて大型連続装置を使って、プロクロラズ剤、
フェニトロチオン剤、フェンチオン剤などの濃厚希釈液
が処理されているものがある。これらの農薬処理稲籾種
子は、単にそれぞれの成分の市販品乳剤を希釈して使用
する単純含浸稲籾種子であるので水浸種によって成分の
溶出は免れない。(Conventional Agrochemical Treated Rice Paddy Seeds) Conventionally, especially in Japan, the agrochemical-treated fir has been mainly subjected to immersion treatment with a chemical for rice scabbard disease and rice core wilt. Furthermore,
For rice paddy seeds for cultivating seed fir, using a large continuous device at agricultural test stations, agricultural cooperatives, prochloraz agent,
Some have been treated with concentrated dilute solutions such as fenitrothion agents and fenthion agents. These pesticide-treated rice seeds are simply impregnated rice seeds obtained by diluting commercially available emulsions of the respective components, and therefore the components are inevitably dissolved by the water-soaked seeds.
【０００５】[0005]
【課題を解決するための手段】本発明は、農薬及び、所
望により添加される界面活性剤および／または無機質助
剤を含有する接着性樹脂層により被覆された農薬被覆稲
籾種子とその製造方法である。即ち、本発明になる農薬
被覆稲籾種子は、農薬成分又は農薬製剤、製剤補助剤及
び水不溶性の接着性樹脂の水性エマルジョンの混合液を
稲籾種子に塗布した農薬被覆稲籾種子である。そして、
浸種を行っても水層への農薬成分溶出が抑制され、更に
機械移植前と後の農薬散布が省略され得る農薬被覆稲籾
種子である。The present invention provides a pesticide-coated rice hull seed coated with an adhesive resin layer containing a pesticide and optionally a surfactant and / or an inorganic auxiliary agent, and a method for producing the same. Is. That is, the pesticide-coated rice hull seed according to the present invention is a pesticide-coated rice hull seed obtained by applying a mixture of a pesticide component or a pesticide formulation, a formulation aid and an aqueous emulsion of a water-insoluble adhesive resin to the rice hull seed. And
This is a pesticide-coated rice seed seed that can suppress the elution of pesticide components into the water layer even after soaking and can omit pesticide application before and after machine transplantation.
【０００６】（接着性樹脂の性質）本発明の農薬被覆稲
籾種子の接着性樹脂層は、農薬及び、所望により添加さ
れる界面活性剤および／または無機質助剤を含有する接
着性樹脂液を該当する稲籾種子表面に被覆、乾燥して塗
膜化することにより形成される。塗布する樹脂接着性樹
脂液の樹脂分は、水に不溶性ないし難溶性の固体であ
る。そして、この樹脂分を含有する接着性樹脂液は、水
中に懸濁するエマルジョン、即ち水性エマルジョンの形
で使用される。一方、接着性樹脂粉末も使用でき、高価
格であるので推奨できないものの、稲籾種子と共に混合
して使用することも可能であり、本発明の対象になり得
る。(Properties of Adhesive Resin) The adhesive resin layer of the pesticide-coated rice seed according to the present invention comprises an adhesive resin liquid containing an agricultural chemical and a surfactant and / or an inorganic auxiliary agent, which is optionally added. It is formed by coating the surface of the corresponding rice paddy seed, drying and forming a coating film. The resin component of the applied resin adhesive resin liquid is a solid that is insoluble or sparingly soluble in water. The adhesive resin liquid containing this resin component is used in the form of an emulsion suspended in water, that is, an aqueous emulsion. On the other hand, although an adhesive resin powder can also be used and is not recommended because it is expensive, it can be used as a mixture with rice hull seeds and can be a subject of the present invention.
【０００７】（接着性樹脂水性エマルジョンの農薬成分
又は農薬製剤との相溶性又は懸濁安定性）農薬成分又は
農薬製剤との相溶性又は懸濁安定性がある接着性樹脂水
性エマルジョン（所謂、『塗り材料』）が、本発明の被
覆接着層を形成するための接着性樹脂液の接着成分とし
て使用される。この接着性樹脂水性エマルジョンは、使
用される農薬成分又は農薬製剤（水和剤、乳剤、水性の
フロワブル、油性の広義のフロワブル、カプセルサスペ
ンジョン等の各種懸濁剤、顆粒水和剤、油剤）、界面活
性剤及び／又は無機質助剤と良く混合し、且つ、化学的
に安定且つ農薬成分と不活性であることが要求される。
本発明の被覆接着液は、稲籾種子に付着しても化学的に
は安定であって含有成分、特に農薬成分の分解は起き
ず、水分の蒸散に従って分散していた樹脂分の微粒子が
互いに連結、融合する。そして、その融合物中に農薬を
融解または懸濁した膜になって種子を均一連続し乃至場
合によっては断続して、例えばまだら状乃至は斑点状に
被覆する。この水不溶性樹脂膜の被覆により、農薬被覆
稲籾種子の農薬成分は稲籾種子から容易に脱落せず、そ
の結果農薬成分の溶出が漸次行われるという溶出抑制が
達成される。(Compatibility or Suspension Stability of Adhesive Resin Aqueous Emulsion with Agrochemical Component or Agrochemical Formulation) Adhesive aqueous resin emulsion having compatibility or suspension stability with agrochemical component or agrochemical formulation (so-called " Coating material ") is used as an adhesive component of the adhesive resin liquid for forming the coating adhesive layer of the present invention. This adhesive resin aqueous emulsion is used as a pesticide component or pesticide formulation (wettable powder, emulsion, aqueous flowable, oily flowable in a broad sense, various suspensions such as capsule suspensions, granule wettable powder, oil), It is required to be well mixed with a surfactant and / or an inorganic auxiliary agent, be chemically stable, and be inactive with pesticide components.
The coating adhesive solution of the present invention is chemically stable even when attached to rice paddy seeds, and does not cause decomposition of contained components, particularly pesticide components, and fine particles of resin components dispersed according to evaporation of water are mutually separated. Connect and fuse. Then, a film in which the pesticide is melted or suspended is formed in the fusion product, and the seeds are evenly or continuously discontinuously coated, for example, in a mottled or spotted manner. By the coating with the water-insoluble resin film, the pesticide component of the pesticide-coated rice hull seed is not easily removed from the rice hull seed, and as a result, the pesticide component is gradually eluted, thereby suppressing elution.
【０００８】（接着性樹脂の例）合成接着性樹脂は水性
エマルジョンや粉末体として商品化されている。これら
商品の化合物的骨格分類と、それぞれの重合度による銘
柄は多岐に亘る。これらは単品でも互いに混合して用い
ることもできる。本発明の農薬被覆稲籾種子に使用され
得る合成接着性樹脂は、イネに無害であるものであっ
て、例えば酢酸ビニル系の共重合樹脂、例えば酢酸ビニ
ルと、アクリル系、ベオバ〔Ｖｅｏｖａ＝Ｖｉｎｙｌ
ＥｓｔｅｒＯｆＶａｓａｔｉｃＡｃｉｄ：酢酸ビニ
ルと同等の強度を持ち、優れた性能を持つもの。シェル
社の開発品：Ｒ1Ｒ2Ｒ3Ｃ−ＣＯＯＣＨ＝ＣＨ2（Ｒ
1，Ｒ2とＲ3＝低級アルキル基を表す）〕、エチレン
又はエチレンと塩化ビニルとの共重合樹脂である。また
天然のものであってもそれが水に溶けない水性エマルジ
ョンとして製造されていれば単独または合成のものとの
混用や、更にネオプレンと呼ばれるゴムラテックス（Ｓ
ＢＲラテックス）の単独、混用もさしつかえない。これ
ら水不溶性又は難溶性の接着性樹脂の重合度は、普通に
塗料として機能できる程度のものであって、形成された
接着性樹脂層が固形である程度のものであればよい。次
に水性エマルジョン中の接着性樹脂成分の具体例を示す
がこれに限定されるものではない。(Example of Adhesive Resin) Synthetic adhesive resins are commercialized as aqueous emulsions and powders. There are a wide variety of brands based on the chemical skeleton classification of these products and their degree of polymerization. These can be used individually or as a mixture with each other. The synthetic adhesive resin that can be used in the pesticide-coated rice seed of the present invention is harmless to rice, and is, for example, a vinyl acetate-based copolymer resin, such as vinyl acetate, and an acrylic-based or Veova = Veova =V. inyl
E ster O f V asatic A cid : has a strength equivalent to that of vinyl acetate, which has excellent performance. Product developed by Shell: R1 R2 R3 C-COOCH = CH2 (R
1 , R2 and R3 represent a lower alkyl group)], ethylene or a copolymer resin of ethylene and vinyl chloride. Further, even if it is a natural one, if it is manufactured as an aqueous emulsion which is insoluble in water, it is used alone or in combination with a synthetic one, and further, a rubber latex called neoprene (S
BR latex) may be used alone or in combination. The degree of polymerization of these water-insoluble or sparingly soluble adhesive resins may be such that they can normally function as a paint, and the formed adhesive resin layer is solid to some extent. Next, specific examples of the adhesive resin component in the aqueous emulsion will be shown, but the invention is not limited thereto.
【表１】[Table 1]
【０００９】農薬を稲籾種子に被覆する接着造膜性樹脂
量はその農薬の水溶解度によって異なり８０〜１００ｐ
ｐｍでは稲籾種子１Ｋｇ当たり３０〜５０ｇ、５０ｐｐ
ｍでは１０〜３０ｇ、それ以下では０．２〜１０ｇの範
囲が好ましいが農薬量との兼ね合いがあって、明確な被
覆量範囲は限定できない。（なお、稲籾種子１Ｋｇに被
覆される接着性樹脂量は、接着性樹脂水性エマルジョン
中の乾物重量である。）The amount of the adhesive film-forming resin for coating the rice seeds with the pesticide varies depending on the water solubility of the pesticide and is from 80 to 100 p.
In pm, 30-50 g / Kg of rice seeds, 50 pp
A range of 10 to 30 g for m and a range of 0.2 to 10 g for m are preferable, but there is a balance with the amount of pesticide, and the clear range of coverage cannot be limited. (Note that the amount of the adhesive resin coated on 1 kg of rice paddy seeds is the weight of the dry matter in the adhesive resin aqueous emulsion.)
【００１０】（稲籾種子）本発明の農薬被覆稲籾種子に
使用される稲籾種子は、通常タネモミと称せられる乾燥
稲籾種子で品種は特に限定しないが塩水選か、大量シス
テマシック・メソッドによる粗選機、脱芒機、シ−ド・
クリ−ナ−、ユニシ−ド・クリ−ナ−、ユニフロ−・セ
パレ−タ−等による選別を行ったものが使用される。(Rice paddy seed) The rice paddy seed used for the pesticide-coated rice paddy seed of the present invention is a dry paddy seed which is usually called tanemi, and the variety is not particularly limited, but it is salt water selection or a large-scale systematic method. Coarse-selecting machine, shaving machine, seed
Those which have been selected by a cleaner, a unit cleaner, a uniflow separator, etc. are used.
【００１１】（使用される稲籾種子と接着性樹脂の被覆
量との関係）稲籾種子の発芽、生育揃いは機械移植の条
件として重要であり農薬が被覆される前に、原料である
購入乾燥稲籾種子の選別が行われる。そのシステマティ
ック・メソッドによる工程は粗選機（イネコウジ、大き
めなゴミ）の除去、脱芒機、シ−ド・クリ−ナ−（長大
ゴミ・梗付粒の除去）、ユニフロ−・セパレ−タ−（玄
米、割れ米の除去）等の除去を行った種子が望ましい。
この工程を経た精選籾であってもモミ摺り現象によるモ
ミ殻の傷み（モミ殻が剥離しかかった玄米になり易い稲
籾種子）が混在し成育不揃いの原因になる。このような
稲籾種子は正常な種子に比べ、発芽が早く徒長して軟弱
な苗になり易い。このようなモミ殻傷み種子の水不溶性
樹脂による被覆は前記の欠点を和らげる。かかる接着性
樹脂の被覆量は通常モミ１Ｋｇに対し２〜１００ｇが望
ましい。しかし生物に対する安全性、水浸種での溶
出抑のバランス、被覆装置の運転中における接着性樹
脂の内部付着、さらに種子同志の複数接着が起こらな
いことなど順調な運転をもたらす上での接着性樹脂の被
覆量はモミ１Ｋｇに対して２〜５０ｇが望ましい。(Relationship between rice paddy seeds used and coating amount of adhesive resin) Germination and growth alignment of rice paddy seeds are important as conditions for mechanical transplantation, and they are purchased as raw materials before being coated with agricultural chemicals. Dried rice seeds are sorted. The process by the systematic method is the removal of roughing machine (rice koji, large dust), de-sealing machine, seed cleaner (removal of long dust and grain with infarction), uniflo separator. Seeds that have been removed (removal of brown rice and broken rice) are desirable.
Even in the carefully selected paddy that has undergone this process, damage to the fir shell due to the fir-sliding phenomenon (rice paddy seeds that tend to become brown rice with the fir shell peeling off) is mixed and causes uneven growth. Compared with normal seeds, such rice seeds germinate faster and tend to become soft seedlings. The coating of such fir shell-damaged seeds with a water-insoluble resin alleviates the above-mentioned drawbacks. Usually, the coating amount of the adhesive resin is preferably 2 to 100 g per 1 kg of fir. However, it is an adhesive resin to bring about a smooth operation, such as safety against living things, balance of elution suppression by water-immersed seeds, internal adhesion of adhesive resin during operation of the coating device, and the fact that multiple seeds do not adhere to each other. It is desirable that the coating amount of 2 to 50 g per 1 kg of fir.
【００１２】（稲籾種子に被覆される農薬）本発明の農
薬被覆稲籾種子の接着性樹脂液に含有される農薬の例と
しては、殺菌剤、殺線虫剤、殺虫剤及び植物成長調節剤
が挙げられる。本発明の農薬被覆稲籾種子に使用される
農薬は、上記用途の単一の農薬だけでなく、２種以上の
所望により選択された他用途の混合物であってもよい。
上記農薬の具体例を一般名と化学名で記載する。 （殺菌剤）稲籾種子育苗箱や本田で増殖するイネの馬鹿
苗病、ゴマ葉枯れ病、イモチ病、（以上糸状菌類）苗立
ち枯れ細菌病、モミ枯れ細菌病、褐條病などを防除する
ための対応薬剤が被覆される。 具体例：トリフルミゾ−ル〔化学名：（Ｅ）−４−クロ
ロ−α，α，α−トリフルオロ−Ｎ−（１−イミダゾ−
ル−１−イル−２−プロポキシエチリデン）−Ｏ−トル
イジン〕剤、ベノミル剤〔化学名：メチル−１−（ブチ
ルカルバモイル）−２−ベンゾイミダゾールカーバメー
ト〕。(Agricultural chemicals coated on rice paddy seeds) Examples of the agricultural chemicals contained in the adhesive resin solution of the agricultural chemical coated rice paddy seeds of the present invention include fungicides, nematicides, insecticides and plant growth regulators. Agents. The pesticide used for the pesticide-coated rice seed of the present invention may be not only a single pesticide for the above-mentioned use but also a mixture of two or more kinds for other uses selected as desired.
Specific examples of the above-mentioned pesticides are described by their generic names and chemical names. (Fungicide) Control scabbardling disease of rice, sesame leaf blight, blast, and fungal disease (above filamentous fungi) seedling wilting bacterial disease, fir-bacterial bacterial disease, brown scab etc. of rice growing in rice seed box and Honda The corresponding drug for is coated. Specific example: triflumizole [Chemical name: (E) -4-chloro-α, α, α-trifluoro-N- (1-imidazole-
L-1-yl-2-propoxyethylidene) -O-toluidine] agent, benomyl agent [Chemical name: methyl-1- (butylcarbamoyl) -2-benzimidazole carbamate].
【００１３】（イネ芯枯センチュウ剤）イネ芯枯センチ
ュウを防除するための対応薬剤が被覆される。 具体例：フェンチオン（ＭＰＰ）〔化学名：Ｏ，Ｏ−ジ
メチル−Ｏ−〔３−メチル−４−（メチルチオ）フェニ
ル〕チオフォスフェ−ト〕剤。(Rice core rot agent) A corresponding agent for controlling rice core rot nematode is coated. Specific example: Fention (MPP) [Chemical name: O, O-dimethyl-O- [3-methyl-4- (methylthio) phenyl] thiophosphate] agent.
【００１４】（殺虫剤）本田移植後の加害虫であるイネ
ミズゾウムシ、イネドロオイムシ、イネゾウムシ、ツマ
グロヨコバイ、ヒメトビウンカ、イネハモグリバエ、イ
ネヒメハモグリバエ、セジロウンカ、トビイロウンカ、
コブノメイガ、イネツトムシ等を防除する対応薬剤が被
覆される。 具体例：イネミズゾウムシ、ウンカ類の防除剤の例とし
て、ベンフラカルブ〔化学名：エチル＝Ｎ−〔２，３−
ジヒドロ−２，２−ジメチルベンゾフラン−７−イルオ
キシカルボニル（メチル）アミノチオ〕−Ｎ−イソプロ
ピル−β−アラニナ−ト〕剤、フェンチオン（ＭＰＰ）
剤。(Insecticides) Rice weevil, rice dwarf beetle, rice weevil, leafhopper leafhopper, rice leafhopper, rice leafhopper, rice leafhopper, rice leafhopper, rice leafhopper, white-bellied leafhopper, white-tailed planthopper, leafhopper plant,
Corresponding chemicals for controlling Cobb Nomega, rice beetle and the like are coated. Specific examples: Benfuracarb [Chemical name: ethyl = N- [2,3-], as an example of a control agent for rice weevil and planthoppers
Dihydro-2,2-dimethylbenzofuran-7-yloxycarbonyl (methyl) aminothio] -N-isopropyl-β-alaninate] agent, fenthion (MPP)
Agent.
【００１５】（植物成長調節剤）植物成長調節剤（以下
植調剤という）植調剤の中には稲籾の発芽を促進するも
のがある。 具体例：パクロブトラゾール〔化学名：２−メチル−１
−ピリミジン−５−イル−１−（４−トリフルオロメト
キシフェニル）プロパン−１−オール〕剤、ホルクロル
フェニュロン〔化学名：１−（２−クロロ−４−ピリジ
ル）−３−フェニル尿素〕剤。(Plant Growth Regulator) Some plant growth regulators (hereinafter referred to as planting regulators) planting regulators promote the germination of rice paddy. Specific example: paclobutrazole [Chemical name: 2-methyl-1
-Pyrimidin-5-yl-1- (4-trifluoromethoxyphenyl) propan-1-ol] agent, forchlorfenuron [Chemical name: 1- (2-chloro-4-pyridyl) -3-phenylurea ] Agent.
【００１６】稲籾種子に被覆される農薬の量は通常、当
該病虫害の対応薬剤として単位面積当り施用される量を
上回らない範囲である。The amount of the pesticide coated on the rice seeds is usually in a range not exceeding the amount applied per unit area as a drug for the pests concerned.
【００１７】（界面活性剤の種類）接着性樹脂液に添加
される界面活性剤には、非イオン界面活性剤が適してい
る。そのうちポリオキシエチレン付加物群が好ましい。
その付加したエチレンオキシドモル数は６〜２２であっ
てＨＬＢは凡そ４〜１８の範囲のものが望ましい。高級
脂肪酸ソルビタン、高級脂肪酸ポリエチレングリコ−
ル、ポリグリセリン脂肪酸エステル等も有用である。こ
の他にアニオン界面活性剤も有用であるがモミ成分や水
不溶性接着性樹脂の水性エマルジョンを不安定にするこ
とがあり得るので使用にこの点の配慮を要する。カチオ
ン界面活性剤は、乾燥すると界面活性剤としての能力を
喪失し且つ薬害の原因になり得るので好ましくない。(Type of Surfactant) A nonionic surfactant is suitable as the surfactant added to the adhesive resin liquid. Of these, the polyoxyethylene adduct group is preferred.
The added ethylene oxide mole number is preferably 6 to 22, and the HLB is preferably in the range of about 4 to 18. Higher fatty acid sorbitan, higher fatty acid polyethylene glycol
And polyglycerin fatty acid ester are also useful. In addition to this, an anionic surfactant is also useful, but since it may destabilize the aqueous emulsion of the fir component and the water-insoluble adhesive resin, it is necessary to consider this point in use. Cationic surfactants are not preferable because they lose their ability as surfactants when dried and may cause phytotoxicity.
【００１８】下記の界面活性剤添加の効果を出すため
に、界面活性剤を使用する場合の通常の含有量は、使用
される稲籾種子１Ｋｇ当たり０．１〜１０ｇである。界
面活性剤を含有しない接着性樹脂層もあり得るが、下記
のような界面活性剤添加の効果があるので、概して界面
活性剤を添加した型が好ましい。In order to bring out the effect of the addition of the following surfactant, the usual content of the surfactant is 0.1 to 10 g per 1 kg of rice paddy seed used. There may be an adhesive resin layer that does not contain a surfactant, but a type to which a surfactant is added is generally preferable because it has the following effects of adding a surfactant.
【００１９】界面活性剤を含有する農薬製剤が使用され
る場合、更に添加される界面活性剤の量は、その含有量
程度減少する。市販の農薬乳剤又は懸濁剤などを用いる
ときは、これらは界面活性剤を含んでいるので新たに添
加する界面活性剤は無添加ないし少量の添加でよい。混
和される農薬製剤は、概して乳剤、フロワブル等の液体
製剤であって、通常界面活性剤を含んでいるので、それ
に基づいて添加量を調節する必要がある。添加される農
薬製剤が水和剤である場合は、比較的多く添加される。
水和剤は成分と鉱物質の微粉体から成り、分散及び／又
は懸濁剤を主として含んでいるが乳化性の界面活性剤は
少ないので、例えば実施例に示したような種類の界面活
性剤の添加が必要である。添加される界面活性剤は農薬
成分を稲籾種子に被覆するときの安定な乳剤や懸濁剤に
して用いるときの乳化素材として重要である。また農薬
製剤として水和剤を使用して被覆稲籾種子の製造を行う
とき、この中に含まれる鉱物質による摺り現象が原因に
なるモミ殻の剥離を防ぎ、更にモミ表面での農薬製剤の
伸展を助長するのにも有効である。また、ポリオキシエ
チレン付加物群の混合組成物が接着性樹脂液組成物の相
互の親和性を高め且つ農薬成分の円滑な抑制溶出を可能
にするのに使用される。又、この付加物は、例えば、フ
ェンチオン乳剤、トリフルミゾール乳剤のような農薬の
製剤の場合、農薬成分の稲籾種子のモミ殻を通過するの
を補助する。更に界面活性剤はモミの殻（穎、えい）の
外側から農薬を伴ってその内部へ浸透する。モミ殻の表
皮は縦列細胞壁に硅酸が沈積・肥厚して硬いが、この内
部の繊維細胞や海綿状柔組織には間隙が多く膜孔があ
る。農薬を含む製剤の水乳化液と合成樹脂水性エマルジ
ョンとの混合液からなる被覆液はこれらの構造を通じて
モミ殻内を飽和し玄米との隙間に達し更に玄米に吸われ
る。玄米を包んでいる種皮は薄いが水に接しても容易に
は吸水しないが界面活性剤を含む液はこの障壁を通過す
る。更に殺虫、殺菌成分が常温でワックス〜オイル状の
ものであれば胚乳に達しやすい。これらの成分は作物に
対して安全で且つ賦活させる物質として選ばれたもので
あるからその適量は種子の発芽、生育に極めて有効に機
能する。When an agrochemical formulation containing a surfactant is used, the amount of the surfactant added is reduced to the extent of its content. When a commercially available pesticide emulsion or suspension is used, since these contain a surfactant, the surfactant newly added may be added without addition or in a small amount. The pesticide formulation to be mixed is generally a liquid formulation such as an emulsion or a flowable and usually contains a surfactant, so that the addition amount needs to be adjusted based on it. When the pesticide formulation to be added is a wettable powder, a relatively large amount is added.
The wettable powder is composed of fine powders of components and minerals and mainly contains a dispersing and / or suspending agent, but there are few emulsifying surfactants. Therefore, for example, a surfactant of the kind shown in Examples is used. Is required. The added surfactant is important as an emulsifying material when it is used as a stable emulsion or suspension for coating rice paddy seeds with agrochemical components. In addition, when a wettable powder is used as a pesticide formulation to produce coated rice hull seeds, peeling of the fir shell caused by the sliding phenomenon caused by the mineral substances contained therein is prevented, and the pesticide formulation on the fir surface is further reduced. It is also effective in promoting extension. In addition, a mixed composition of the polyoxyethylene adduct group is used to enhance mutual affinity of the adhesive resin liquid composition and to enable smooth and controlled elution of agricultural chemical components. In addition, for example, in the case of preparations of agricultural chemicals such as fenthion emulsion and triflumizole emulsion, this adjunct aids in passing through the fir shell of rice paddy seeds which is an agricultural chemical ingredient. Furthermore, the surface-active agent penetrates into the inside of the fir shell (spare, gall) along with the pesticide. The epidermis of the fir shell is hard due to the silicic acid depositing and thickening on the tandem cell walls, but the fibrous cells and spongy parenchyma inside the epidermis have many pores and membrane pores. The coating solution consisting of a mixture of a water emulsion of a formulation containing an agricultural chemical and an aqueous synthetic resin emulsion saturates the inside of the fir shell through these structures, reaches the gap with the brown rice, and is further sucked by the brown rice. The seed coat wrapping brown rice is thin, but it does not easily absorb water even if it comes into contact with water, but the liquid containing the surfactant passes through this barrier. Furthermore, if the insecticidal and bactericidal components are wax or oil at room temperature, they easily reach the endosperm. Since these components are selected as substances that are safe and activating for crops, appropriate amounts of them function extremely effectively for seed germination and growth.
【００２０】（界面活性剤の具体例）以下、界面活性剤
の具体例を示すがこれらに限定されるものではない。(Specific Examples of Surfactant) Specific examples of the surfactant will be shown below, but the invention is not limited thereto.
【表２】[Table 2]
【００２１】[0021]
【表３】[Table 3]
【００２２】（無機質助剤）接着性樹脂液に添加される
無機質助剤は、一般に無機質の、被覆種子製品の表面改
質材、隠蔽材、保護壁材及び肥大材（ペレッティング
材）等である。これら無機質助剤は、微粉体として接着
性樹脂液に添加される。これら無機質助剤のうち、天然
産鉱物質、合成鉱物質（焼成物を含む）より成る、ｐＨ
５〜９のものが好ましい。吸着性の高いものは、農薬へ
の二次作用（分解、無効化）などがあるおそれがあるの
で好ましくない。接着性樹脂液に含有される無機質助剤
の量は、稲籾種子１Ｋｇに対して通常は０．１〜２０ｇ
である。農薬成分が粉末で被覆量が微小なときは添加の
必要がないことがある。接着性樹脂液に無機質助剤が含
有されない場合があるが、概して無機質助剤が含有され
ている方が好ましい。 （無機質助剤の具体例）接着性樹脂液に添加される無機
質助剤の具体例を示す：絹雲母系鉱物質類、アルミナ、
酸化チタン、イリオジン（酸化チタン被覆雲母）クレ
−、タルク、珪藻土、カオリン、ベントナイト、イライ
ト、ハロサイト、パ−ライト、バ−ミキュライト、ゼオ
ライト、硫酸カルシュウム、炭酸カルシュウム、珪酸カ
ルシュウム、珪酸マグネシュウム、シリカフラワ−、活
性白土、酸性白土、酸化鉄、活性炭。接着性樹脂液に添
加される農薬製剤が、界面活性剤の他に油状物例えば、
効力増強油剤、成分安定の為の油状物、カプセル形成剤
などを含む、乳剤、懸濁剤である場合、これが本発明の
農薬被覆稲籾種子の表面の「べた付き」の原因になる。
この「べた付き」は、無機質助剤の添加により解消さ
れ、農薬被覆稲籾種子の表面の「しっとり感」を消す。
これに対し、接着性樹脂液に添加される農薬製剤が無機
質助剤を含有している水和剤である場合は、新たに添加
する無機質助剤の量は、無添加ないし比較的少量でよ
い。(Inorganic auxiliary agent) The inorganic auxiliary agent added to the adhesive resin liquid is generally an inorganic surface-modifying material for a coated seed product, a concealing material, a protective wall material and a thickening material (pelletizing material). is there. These inorganic assistants are added to the adhesive resin liquid as fine powder. Of these inorganic auxiliaries, natural minerals, synthetic minerals (including calcined products), pH
Those of 5 to 9 are preferable. A substance having a high adsorptive property is not preferable because it may have a secondary action (decomposition or invalidation) on an agricultural chemical. The amount of the inorganic auxiliary agent contained in the adhesive resin liquid is usually 0.1 to 20 g per 1 kg of rice paddy seeds.
Is. It may not be necessary to add when the pesticide component is powder and the coating amount is minute. The adhesive resin liquid may not contain an inorganic auxiliary agent in some cases, but it is generally preferable that the adhesive resin liquid contains an inorganic auxiliary agent. (Specific example of inorganic auxiliary agent) Specific examples of the inorganic auxiliary agent added to the adhesive resin liquid are shown: sericite-based minerals, alumina,
Titanium oxide, iridin (titanium oxide coated mica) clay, talc, diatomaceous earth, kaolin, bentonite, illite, halosite, pearlite, vermiculite, zeolite, calcium sulfate, calcium carbonate, calcium silicate, magnesium silicate, silica flower. , Activated clay, acid clay, iron oxide, activated carbon. The pesticide formulation added to the adhesive resin liquid is an oily substance other than the surfactant, for example,
In the case of an emulsion or suspension containing a potency-enhancing oil, an oil for stabilizing the components, a capsule-forming agent, etc., this causes "stickiness" on the surface of the pesticide-coated rice seed of the present invention.
This "stickiness" is eliminated by the addition of an inorganic auxiliary agent, and the "moist feeling" on the surface of the pesticide-coated rice seeds is eliminated.
On the other hand, when the pesticide formulation added to the adhesive resin liquid is a wettable powder containing an inorganic auxiliary agent, the amount of the inorganic auxiliary agent newly added may be no addition or a relatively small amount. .
【００２３】（色素）本発明の農薬被覆稲籾種子の色素
は本発明の構成に必須ではないが、本発明の農薬被覆稲
籾種子を製造、販売、運搬、保管そして使用する場合に
は、食用又は飼料用として供されぬよう注意するために
最低限の着色が必要である。色素はアゾレ−キ、不溶性
アゾ化合物が適している。これらの色素は、稲籾種子に
無毒でありそして添加量は、他目的のための使用を回避
するための識別をするのに十分な量であればよい。(Dye) The pigment of the pesticide-coated rice hull seed of the present invention is not essential for the constitution of the present invention, but when the pesticide-coated rice hull seed of the present invention is manufactured, sold, transported, stored and used, A minimum of coloring is required to ensure that it is not used as food or feed. Suitable dyes are azo lakes and insoluble azo compounds. These pigments are non-toxic to rice seeds, and the amount added may be a sufficient amount to make a distinction for avoiding use for other purposes.
【００２４】色素の具体例を下記する。 （アゾレ−キ化合物） (1) ブリリアントカルミン６Ｂ（No. １５８５０） (2) レ−キッドＣ（No. １５５８５）Specific examples of the dye will be described below. (Azo Lake Compound) (1) Brilliant Carmine 6B (No. 15850) (2) Liquid C (No. 15585)
【００２５】（不溶性アゾ化合物） (1) ピグメント・レッド１１２ (2) ピグメント・イエロ−７４ (3) ピグメント・ブル−２５(Insoluble Azo Compound) (1) Pigment Red 112 (2) Pigment Yellow-74 (3) Pigment Bull-25
【００２６】適当に選択された上述の農薬又は農薬製剤
及び所望によって新たに添加される上述の界面活性剤及
び／又は無機質助剤（そして色素）を、適当に選択され
た上述の接着性樹脂液に添加して十分に混和することに
より、本発明の農薬被覆稲籾種子の接着性樹脂層を形成
するための農薬及び、所望により添加される界面活性剤
及び／又は無機質助剤を含有する接着性樹脂液が製造さ
れる。原料の接着性樹脂液に添加される各成分の添加順
序は任意であってもよいが、接着性樹脂液の物理的形態
例えばエマルジョン系を破損しないように、よく攪拌し
ながら添加するのが好ましい。その添加は、例えば、水
により希釈された又は希釈されていない接着性樹脂液
に、液状又は微粉末状の農薬又は農薬製剤を、攪拌下、
滴下添加又は注入する方法による。この場合、所望によ
り新たに添加される界面活性剤及び／又は無機質助剤
（そして色素）は、その農薬又は農薬製剤の添加の前、
添加中又は添加後に添加されるか又は農薬製剤に予め添
加されていてもよい。混合温度は、通常の外気温度、例
えば０ないし４０℃の範囲内で行われてよいが、接着性
樹脂液の物理的常態を破損せず、且つ添加された農薬又
は農薬製剤が接着性樹脂液と十分に混和できる温度で添
加するのが好ましい。A suitable selection of the above-mentioned pesticide or pesticide formulation and optionally the above-mentioned newly added surfactant and / or inorganic auxiliary agent (and dye), above-mentioned appropriately selected adhesive liquid And an admixture containing a pesticide for forming the adhesive resin layer of the pesticide-coated rice hull seeds of the present invention, and optionally containing a surfactant and / or an inorganic auxiliary agent. Liquid resin is produced. The order of addition of the components added to the raw material adhesive resin liquid may be arbitrary, but it is preferable to add them while stirring well so as not to damage the physical form of the adhesive resin liquid, for example, the emulsion system. . The addition, for example, to the adhesive resin liquid diluted or not diluted with water, a liquid or fine powdered pesticide or pesticide formulation, under stirring,
It depends on the method of dropping addition or injection. In this case, if desired, the newly added surfactant and / or inorganic auxiliary agent (and dye) may be added before the addition of the pesticide or pesticide formulation.
It may be added during or after the addition, or may be added to the pesticide formulation in advance. The mixing temperature may be a normal outside air temperature, for example, within a range of 0 to 40 ° C., but the physical condition of the adhesive resin liquid is not damaged, and the added pesticide or the pesticide formulation is adhesive resin liquid. Is preferably added at a temperature at which it can be sufficiently mixed.
【００２７】かくして、製造された接着性樹脂液を稲籾
種子に塗布して、本発明の農薬被覆稲籾種子を製造す
る。その塗布方法は常用の方法による。例えば、攪拌さ
れている稲籾種子に、上述の接着性樹脂液を、直接飛沫
又は噴霧しながら乾燥するか、又は回転する平板状又は
波型の円板上に一旦滴下してから散布して乾燥する方法
がある。接着性樹脂層の形成温度は、接着性樹脂液中の
溶媒である水分が蒸発するのに十分に高い温度であっ
て、含有成分と稲籾種子に悪影響を与えない温度であれ
ばよい。通常は、２０ないし７０℃、好ましくは２０な
いし５０℃である。接着性樹脂液の塗膜形成時の稲籾種
子を攪拌する速度は、稲籾種子を所望以上に破損しない
ように、適当に調節する必要がある。接着性樹脂液の塗
膜の乾燥を適当に早めるために、普通の大気又は乾燥空
気を上述の稲籾種子の攪拌装置中に強制的に流通せしめ
てもよい。Thus, the produced adhesive resin liquid is applied to rice paddy seeds to produce the agricultural chemical-coated rice paddy seeds of the present invention. The coating method is a conventional method. For example, the rice resin seeds that are being stirred are dried by directly spraying or spraying the above-mentioned adhesive resin liquid, or once dropped on a rotating flat or corrugated disc and then sprayed. There is a method of drying. The adhesive resin layer may be formed at a temperature that is high enough to evaporate water, which is a solvent in the adhesive resin liquid, and does not adversely affect the contained components and the rice seed. Usually, it is 20 to 70 ° C, preferably 20 to 50 ° C. The speed at which the rice paddy seeds are agitated during the formation of the coating film of the adhesive resin solution needs to be appropriately adjusted so as not to damage the rice paddy seeds more than desired. In order to properly accelerate the drying of the coating film of the adhesive resin liquid, ordinary air or dry air may be forced to flow through the above-mentioned rice paddy seed agitator.
【００２８】この接着性樹脂層形成のための装置の具体
例を下記する： （製剤装置）農薬被覆稲籾種子の製造は特に限定された
装置を必要としないが実験に使用した装置を挙げる。大
量製造装置としては日本車輌（株）、グスタフソン式の
ものがある。Specific examples of the apparatus for forming the adhesive resin layer are as follows: (Formulation apparatus) The apparatus used for the experiment is mentioned, though the production of the agrochemical-coated rice hull seeds does not require a particularly limited apparatus. As a mass-production device, there is a Gustavson type manufactured by Nippon Vehicle Co., Ltd.
【表４】[Table 4]
【００２９】なお、農薬被覆稲籾種子の用途によって
は、異なる時期に同種又は異種の農薬を放出せしめるた
めに、層間で互いに同種又は異種の農薬を含有する互い
に同種又は異種の接着性樹脂層からなる二層以上の接着
性樹脂層である接着性樹脂多層を持つ農薬被覆稲籾種子
も本発明の対象に包含される。この場合は、上述の常法
の塗膜形成法に従って、適当に選択された二種以上の塗
布される接着性樹脂液を適当な順序で塗布、乾燥すれば
よい。例えば、水田移植後用の農薬を下層の接着性樹脂
層に、そして水田移植前用の農薬を上層の接着性樹脂層
に包含させればよい。更に、具体的には、上層は殺虫
剤、そして下層は殺菌剤の系が存在する。Depending on the application of the pesticide-coated rice seeds, in order to release the same or different pesticides at different times, from the same or different adhesive resin layers containing the same or different pesticides between layers. The present invention also includes an agricultural chemical-coated rice hull seed having an adhesive resin multilayer, which is two or more adhesive resin layers. In this case, two or more kinds of appropriately selected adhesive resin liquids to be applied may be applied and dried in an appropriate order according to the above-mentioned conventional coating film forming method. For example, the pesticide for paddy field transplantation may be contained in the lower adhesive resin layer, and the pesticide for paddy field transplantation may be contained in the upper adhesive resin layer. More specifically, there is a system of insecticide in the upper layer and fungicide in the lower layer.
【００３０】以下、本発明の農薬被覆稲籾種子のその予
期できない効果とその作用について説明する。 （予め農薬を被覆した稲籾種子を用い殺菌と農薬の箱施
用を省略することができる。）国内の水稲栽培において
天候などの不特定条件を除きその作柄を左右する因子は
タネモミの比重選から始まる機械移植までのいわゆる苗
作りにあると言われている。この作業のステップは種
モミ消毒即ちモミ消毒剤の塗抹、乳剤の１００〜１００
０倍液による１０分〜２４時間浸漬、濃厚希釈液の吹き
付け処理 水浸種催芽播種（育苗箱）・芽出し
育苗農薬粒剤処理（移植前数日か当日箱施用）であ
る。これらの作業で農薬の取り扱いと計量、散布という
煩わしい作業即ちとを、本発明の農薬被覆稲籾種子
の使用により省略できる。The unexpected effect and action of the pesticide-coated rice seed of the present invention will be described below. (It is possible to omit sterilization and box application of pesticides using rice paddy seeds that have been coated with pesticides in advance.) In rice cultivation in Japan, factors that influence the pattern except for unspecified conditions such as weather are from the specific gravity selection of tanemomi. It is said to be in so-called seedling production until the machine transplant begins. The step of this work is to disinfect the seed fir, that is, to smear the fir disinfectant and 100-100 of the emulsion.
Immersion with 0 times liquid for 10 minutes to 24 hours, spraying with a concentrated diluting solution Water immersion seed germination seeding (seedling box) / sprouting seedling pesticide granule treatment (several days before transplantation or box application on the day). In these operations, troublesome operations such as handling, weighing, and spraying of pesticides can be omitted by using the pesticide-coated rice seeds of the present invention.
【００３１】（浸種の必要性と、浸種時の成分溶出抑
制）の水浸種（稲籾種子の２倍の水で２５℃×約４
日）との催芽（３０℃×２日）の作業は順調な発芽、
生育と苗揃えで稚苗の機械移植には欠くことの出来ない
作業である。即ち稲籾種子の発芽、苗立ち（草丈）を揃
えて移植むらを無くすために欠かせない。一般に浸種前
に行われるモミ消毒は殺菌、殺虫剤による中濃度短時間
浸漬、低濃度長時間浸漬、又は高濃度吹き付け処理（種
子消毒機使用）または塗抹処理された稲籾種子はと
の作業の吸水に伴って膨張肥大しこの間に殺菌、殺虫が
完了するといわれているがこの時農薬は多少なりとも水
層へ溶出する。この間、水は稲籾種子に付着している微
細な塵埃、バクテリア、溶出する稲籾種子成分などと相
まって悪臭を放つので新しい水と２日に１回程度のペ−
スで換水が行われ、その都度溶失する量は無視出来な
い。(Necessity of soaking and suppression of elution of components at the time of soaking) Water soaking seed (25 ° C. × about 4 times with twice the water of rice seed)
Sprouting (30 ° C x 2 days) with sprouting is good,
This is a work that is indispensable for mechanical transplantation of young seedlings by growing and aligning seedlings. That is, it is indispensable for germination of rice paddy seeds and for establishing seedling standing (plant height) to eliminate uneven transplanting. Generally, fir disinfection performed before soaking is sterilization, medium-concentration short-time immersion with an insecticide, low-concentration long-time immersion, or high-concentration spray treatment (using a seed disinfecting machine) or smear treatment of rice paddy seeds It is said that swelling and swelling are accompanied by water absorption, and sterilization and killing of insects are completed during this period. During this period, the water gives off a bad odor in combination with fine dust, bacteria, and eluent rice seed components adhering to the rice seeds.
The water is replaced by water, and the amount that is lost each time cannot be ignored.
【００３２】（農薬成分の水溶解度と水不溶性接着性樹
脂による溶出抑制）従来の農薬被覆モミの浸種による農
薬成分の溶出速度は、農薬成分の水に対する溶解度にほ
ぼ正相関の関係にある。農薬の水に対する溶解度が１５
０ｐｐｍ以下、特に１００ｐｐｍ以下の場合は、本願発
明のように、稲モミの正常な発芽生育を維持できる範囲
内の量の水不溶性又は難溶性の接着性樹脂液に農薬成分
を混合させて稲モミ上に塗布して樹脂層を形成すると、
農薬成分の溶出を抑制でき、上述のような換水の度ごと
の溶失を低減できる。農薬成分の水に対する溶解度が低
いと溶出速度も当然低くなり、例えば溶解度が１０ｐｐ
ｍ以下の場合は溶出速度は非常に低い。このように溶解
度が低くて且つモミに被覆された農薬成分が固形粉末状
又は懸濁剤由来の固形粉末、或いは液体成分であっても
固体粉末に吸着されている場合は、農薬成分が浸種時に
稲モミの表面から脱落して流亡してしまう。このような
場合、本発明に従って、水に不溶性又は難溶性の接着性
樹脂液を使用すると脱落、流亡を防止することができ
る。(Solubility of pesticide components in water and suppression of elution by water-insoluble adhesive resin) The elution rate of pesticide components due to immersion of a conventional pesticide-coated fir has a positive correlation with the solubility of pesticide components in water. Solubility of pesticide in water is 15
In the case of 0 ppm or less, particularly 100 ppm or less, as in the present invention, the rice puffer is prepared by mixing the pesticide component with the water-insoluble or sparingly soluble adhesive resin solution in an amount within the range capable of maintaining the normal germination and growth of rice fir. When applied to form a resin layer,
The elution of pesticide components can be suppressed, and the above-mentioned dissolution of water every time can be reduced. When the solubility of pesticide components in water is low, the elution rate is naturally low, for example, the solubility is 10 pp.
When it is less than m, the elution rate is very low. In this way, when the pesticide component having a low solubility and being coated with fir is adsorbed to a solid powder or a solid powder derived from a suspending agent, or even a liquid component, when the pesticide component is soaked It falls off from the surface of rice fir and is washed away. In such a case, according to the present invention, if an adhesive resin liquid that is insoluble or sparingly soluble in water is used, falling off and runoff can be prevented.
【００３３】（使用される農薬成分の剤型と接着性樹脂
の効用）農薬成分が同一のものであってもいろいろの剤
型で使用され得る。一般に農薬成分が有機溶剤に溶解し
安定であるときは、乳剤に製剤されるが、目的によって
は吸油性粉体に吸収させて水和剤として使用される。
又、有機溶剤に溶解性の固体である農薬成分が水和剤と
して使用される場合がある。更に農薬成分が有機溶剤に
も水にも溶けず、水に安定であれば懸濁剤に製剤されて
使用される。これら水和剤又は懸濁剤を農薬として含有
するものとして本発明の水不溶性接着性樹脂液に使用す
ると有用である。これら水和剤又は懸濁剤は、合成接着
剤水性エマルジョンとの混合液として稲籾種子に処理さ
れると、固体成分（粉末状の農薬、担体等）や液状農薬
成分を吸収した粉体は、籾殻が濾材となって、籾殻の表
層に止まる。しかし、水不溶性又は難溶性接着性樹脂が
それら農薬成分を外側から被覆するので、農薬成分の溶
出又は脱落が抑制される。農薬成分が、ワックス乃至液
状であって水に不溶性ないし難溶性であるものは、本発
明に使用されるときの剤型が乳剤である場合、農薬の流
失は水不溶性又は難溶性の接着性樹脂層により抑制され
るので、本発明の農薬被覆稲籾種子は有用である。接着
剤が水溶性のものであると、水浸種されたとき接着剤の
溶出と共に稲籾表面に被覆された農薬成分も水層に溶出
又は脱落して溶出制御をできない。又、水溶性接着剤が
大気中の水分を吸湿して農薬被覆稲籾種子の表面がべた
付くことがあるので好ましくない。(Formulation of Agrochemical Component Used and Effect of Adhesive Resin) Even if the agrochemical component is the same, it can be used in various formulations. Generally, when the pesticide component is dissolved in an organic solvent and is stable, it is formulated into an emulsion, but depending on the purpose, it is absorbed into an oil-absorbing powder and used as a wettable powder.
In addition, an agricultural chemical component that is a solid soluble in an organic solvent may be used as a wettable powder. Furthermore, if the pesticide component is neither soluble in organic solvent nor in water and stable in water, it is formulated into a suspension for use. It is useful to use these wettable powders or suspending agents as agricultural chemicals in the water-insoluble adhesive resin liquid of the present invention. When these wettable powders or suspensions are treated as a mixed solution with a synthetic adhesive aqueous emulsion on rice paddy seeds, solid components (powdered agricultural chemicals, carriers, etc.) and powders that have absorbed liquid agricultural chemicals components are produced. , The rice husk becomes a filter medium and stops on the surface of the rice husk. However, since the water-insoluble or sparingly soluble adhesive resin coats these pesticide components from the outside, elution or loss of the pesticide components is suppressed. When the pesticide component is a wax or liquid and is insoluble or sparingly soluble in water, the pesticide runoff is a water-insoluble or sparingly soluble adhesive resin when the dosage form used in the present invention is an emulsion. The pesticide-coated rice seeds of the present invention are useful because they are suppressed by layers. When the adhesive is water-soluble, when it is immersed in water, the adhesive is eluted and the pesticide component coated on the surface of the rice paddy is also eluted or dropped into the water layer, and the elution control cannot be performed. In addition, the water-soluble adhesive absorbs moisture in the atmosphere, and the surface of the pesticide-coated rice hull seeds may become sticky, which is not preferable.
【００３４】（接着性樹脂層のイネモミ殻への固着と農
薬成分のモミ殻内への浸透）農薬被覆稲籾種子の浸種で
脱落して無効になる農薬成分の量を減少するには、接着
性樹脂層がモミ殻の構造と密着するのが好ましい。その
密着を接着性樹脂層内の界面活性剤が援助する。発明者
は下記の現象も推定している：即ち、表面張力低下能を
有する界面活性剤が合成樹脂接着剤の水性エマルジョン
と農薬成分をモミ殻細胞内に誘導し、更に玄米ワックス
層、胚乳部へと到達させ、その後、モミの内部で水分の
蒸散と共に接着性樹脂が固着し溶出抑制構造が形成され
る。不溶性接着性樹脂層に含有される農薬が、このよう
な溶出抑制構造を形成する農薬成分であると、本発明の
農薬被覆稲籾種子の効果は更に高まる。(Adhesion of Adhesive Resin Layer to Rice Fir Shell and Penetration of Pesticide Components into Fir Shell) In order to reduce the amount of pesticide component which is lost by seeding of pesticide-coated rice hull seeds and becomes ineffective, adhesion is required. It is preferable that the resin layer adheres closely to the structure of the fir shell. A surfactant in the adhesive resin layer assists the adhesion. The inventor has also estimated the following phenomenon: a surfactant having a surface tension lowering ability induces an aqueous emulsion of a synthetic resin adhesive and an agrochemical component into fir shell cells, and further, a brown rice wax layer, an endosperm part. After that, the adhesive resin is fixed inside the fir with the evaporation of water and the elution suppressing structure is formed. When the pesticide contained in the insoluble adhesive resin layer is a pesticide component forming such an elution suppressing structure, the effect of the pesticide-coated rice hull seed of the present invention is further enhanced.
【００３５】（稲籾種子に被覆された農薬成分の働き）
農薬成分が被覆された稲籾種子は浸種、催芽され鳩胸状
態になるがこの間、被覆された水不溶性の接着剤によっ
て水中で農薬成分の溶出が抑制される。被覆稲籾種子は
育苗箱に播種され充分な水分と保温状態で育苗される。
この間、被覆稲籾種子の非水溶性被覆層は膨潤し、稲籾
種子自身から新しく発生した根部は種子自体ともいえる
その外縁に被覆された農薬を旺盛な成長力で水分、肥料
分と共に体内へ取り込みながら幼葉と共に成長を続け
る。更に稲籾種子と農薬を吸着した培土は機械移植で本
田に移植された後も病虫害から稲苗を保護する。(Function of pesticide component coated on rice seed)
The rice seeds coated with the pesticide component are soaked and germinated to form a pigeon chest. During this period, the coated water-insoluble adhesive suppresses the elution of the pesticide component in water. The coated rice seeds are sown in a nursery box and grown with sufficient moisture and heat.
During this period, the water-insoluble coating layer of the coated rice seeds swells, and the newly developed roots of the rice seeds themselves can be called the seeds themselves.The pesticide coated on the outer edge of the seeds is vigorously grown into the body along with water and fertilizer. Continue to grow with young leaves while taking in. Furthermore, the paddy soil that has adsorbed rice seeds and pesticides protects rice seedlings from pest damage even after being transplanted to Honda by mechanical transplantation.
【００３６】なお、本発明の農薬被覆稲籾種子を移植型
水稲用稲籾種子に使用する場合に就いて述べたが、本発
明の農薬被覆稲籾種子は、直播栽培型の農薬被覆稲籾種
子として散播すること例えば数メートル内の高さからの
散播又は飛行機による空中散播も可能である。Although the pesticide-coated rice seeds of the present invention are used as transplantable paddy rice seeds, the pesticide-coated rice seeds of the present invention are direct-seeding-type pesticide-coated rice seeds. It is also possible to disperse as seeds, for example from the height within a few meters or in the air by airplane.
【００３７】[0037]
【実施例】実施例によって本発明を更に詳細に説明する
が、本発明はこれらの記載により限定されるものではな
い。 （実施例全般の適用事項） （注）(1) 稲籾種子をモミと記す。(2) コ−ト液とは農
薬成分を含まない組成液をいう。(3) 被覆液とは農薬成
分、接着剤を含む組成液をいう。(4) 含浸液とは農薬製
剤の水希釈液をいう。(5) 乾燥条件は４０℃で１時間で
ある。(6) 乾燥品の得量は仕込みモミの持つ平衡水分の
蒸散も含まれ、仕込み重量を下回ることもあり一定では
ない。(7) 製品（農薬被覆稲籾種子）中の農薬成分被覆
量は１Ｋｇ中の目標値として示した。(8) ％は全て重量
％で示した。The present invention will be described in more detail by way of examples, which should not be construed as limiting the present invention. (Applicable items of all examples) (Note) (1) Rice seeds are referred to as fir. (2) The coat liquid means a composition liquid containing no agricultural chemical component. (3) The coating liquid refers to a composition liquid containing a pesticide component and an adhesive. (4) The impregnating solution is a water-diluted solution of agricultural chemicals. (5) The drying condition is 40 ° C. for 1 hour. (6) The yield of the dried product is not constant because it includes the evaporation of the equilibrium water content of the charged fir and may fall below the charged weight. (7) The coating amount of the pesticide component in the product (pesticide coated rice seed) was shown as the target value per 1 kg. (8)% is shown in% by weight.
【００３８】実施例１：トリフルミゾ−ル被覆モミ 殺菌剤：トリフルミゾ−ル〔（Ｅ）−４−クロロ−α，
α，α−トリフルオロ−Ｎ−（１−イミダゾ−ル−１−
イル−２−プロポキシエチリデン）−Ｏ−トルイジン〕
の３０％水和剤（市販品）を成分製剤とし水不溶性の酢
酸ビニルエチレン共重合樹脂水性エマルジョンを用いた
被覆モミ：Example 1: Triflumisol-coated fir Fungicide: triflumisol [(E) -4-chloro-α,
α, α-trifluoro-N- (1-imidazole-1-
Il-2-propoxyethylidene) -O-toluidine]
30% wettable powder (commercially available product) as a component formulation and a water-insoluble vinyl acetate ethylene copolymer resin aqueous emulsion for coating fir:
【００３９】（実験装置：〈表１Ｃ〉とその仕様、操
作）装置Ｃは実験室的規模のものでお椀型容器（７Ｌ）
にモミが仕込まれる。この容器は『内部の中心に縦位に
位置するモ−タ−を有する四脚台』の上部にあって容器
内の縦回転軸と連結している。お椀型容器の中心には回
転軸が出ていて、下部四脚台のモ−タ−軸とギヤ−で結
ばれており、回転軸先端は容器の深さの１／２にあり、
そこに直径７５mmの円盤が固定されている。円板の円周
先端は、あたかも開いた扇子のように緩やかに波うって
いる。この容器には回転中、種子が飛び出さないように
透明な蓋がなされる。この蓋の中心部に小孔があり被覆
液がスポイトで２滴／秒のリズムで回転する円盤に滴下
される。この液滴は瞬時に飛沫となり水平に飛散して回
転するモミを被覆する。この操作は被覆液の滴下完了で
終わり通常１０分以内である。(Experimental device: <Table 1C> and its specifications and operation) The device C is of a laboratory scale and is a bowl-shaped container (7 L).
Is filled with fir. This container is connected to the vertical rotation shaft in the container at the upper part of "a four-legged table having a vertically positioned motor in the center of the inside". A rotation shaft is provided at the center of the bowl-shaped container, and it is connected to the motor shaft of the lower four-legged stand by a gear, and the tip of the rotation shaft is at half the depth of the container.
A disk with a diameter of 75 mm is fixed there. The circular tip of the disk undulates gently like an open fan. The container is covered with a transparent lid to prevent the seeds from popping out during rotation. There is a small hole in the center of the lid, and the coating liquid is dropped by a dropper onto a rotating disc at a rhythm of 2 drops / sec. The droplets instantly become droplets and scatter horizontally to cover the rotating fir. This operation is completed when the dropping of the coating liquid is completed, and is usually within 10 minutes.
【００４０】（被覆液：農薬が含まれる組成液）次にト
リフルミゾ−ル水和剤と混合してモミに滴下されるコ−
ト液の処方を示す。(Coating liquid: Composition liquid containing pesticide) Next, a mixture which is mixed with triflumizole wettable powder and added dropwise to the fir.
The formulation of the solution is shown below.
【表５】[Table 5]
【００４１】第２表に示したコ−ト液１１．２５ｇとト
リフルミゾ−ル水和剤０．５ｇを混合し被覆液とした。
容器にモミ３００ｇを仕込み回転させ被覆液を滴下し、
得られた湿品製剤を乾燥してモミ１Ｋｇ当たりトリフル
ミゾ−ル０．５ｇを含む被覆モミ２９８ｇを得た。A coating solution was prepared by mixing 11.25 g of the coating solution shown in Table 2 and 0.5 g of triflumizole wettable powder.
Charge 300g of fir into the container and rotate to drip the coating liquid.
The obtained wet preparation was dried to obtain 298 g of coated fir containing 0.5 g of triflumizole per 1 kg of fir.
【００４２】実施例２：フェンチオン被覆モミ イネシンガレセンチュウ防除に用いられるフェンチオン
〔化学名：Ｏ，Ｏ−ジメチル−Ｏ−〔３−メチル−４−
（メチルチオ）フェニル〕チオフォスフェ−ト〕の５０
％乳剤を成分製剤とし水不溶性の酢酸ビニルエチレン共
重合樹脂水性エマルジョンを用いた被覆モミ：市販のフ
ェンチオン５０％乳剤０．０９ｇと実施例１・第２表の
コ−ト液１１．２５ｇを混合し被覆液とした。製剤操作
は実施例１で使用した装置にモミ３００ｇを仕込み、回
転させ被覆液を滴下し得られた湿品製剤を乾燥してモミ
１Ｋｇ当たりフェンチオン０．１５ｇを含む被覆モミ２
９６ｇを得た。Example 2: Fention coated with fenthion Fention used for the control of rice pine gallechus [Chemical name: O, O-dimethyl-O- [3-methyl-4-]
50 of (methylthio) phenyl] thiophosphate]
% Fermione 50% emulsion commercially available with water-insoluble vinyl acetate ethylene copolymer resin aqueous emulsion as a component preparation: 0.09 g of a commercially available 50% emulsion of fenthion and 11.25 g of the coating solution of Example 1 and Table 2 are mixed. And used as a coating liquid. For the preparation operation, 300 g of fir was charged into the apparatus used in Example 1, the coating solution was added by rotation and the resulting wet preparation was dried, and coated fir 2 containing 0.15 g of fenthion per 1 kg of fir.
96 g were obtained.
【００４３】実施例３：トリフルミゾ−ル、フェンチオ
ン混合被覆モミ トリフルミゾ−ル水和剤、フェンチオン乳剤を成分製剤
とし水不溶性の酢酸ビニルエチレン共重合樹脂の水性エ
マルジョンを用いた被覆モミ：トリフルミゾ−ル水和剤
０．５ｇ、フェンチオン乳剤０．０９ｇ、実施例１・第
２表のコ−ト液１１．１ｇを混合し被覆液とした。製剤
操作は実施例１で使用した装置にモミ３００ｇを仕込
み、回転させ被覆液を滴下し得られた湿品製剤を乾燥し
てモミ１Ｋｇ当たりトリフルミゾ−ル０．５ｇ、フェン
チオン０．１５ｇを含む被覆モミ２９８．４ｇを得た。Example 3: Trifumisol / fenthion mixed coating fir Triflumizole wettable powder, fenthion emulsion as component preparation and coating fir using water-insoluble aqueous emulsion of vinyl acetate ethylene copolymer resin: triflumole water 0.5 g of a solvating agent, 0.09 g of a fenthion emulsion, and 11.1 g of the coating liquid of Example 1 and Table 2 were mixed to prepare a coating liquid. For the preparation operation, 300 g of fir was charged into the apparatus used in Example 1, and the coating solution was added dropwise to the product to dry the resulting wet preparation to obtain a coating containing 0.5 g of triflumizole and 0.15 g of fenthion per 1 kg of fir. 298.4 g of fir was obtained.
【００４４】実施例４：ベンフラカルブ、トリフルミゾ
−ル混合被覆モミ イネミズゾウムシ防除に用いられる殺虫剤：ベンフラカ
ルブ〔エチル＝Ｎ−〔２，３−ジヒドロ−２，２−ジメ
チルベンゾフラン−７−イルオキシカルボニル（メチ
ル）アミノチオ〕−Ｎ−イソプロピル−β−アラニナ−
ト〕の４０％濃厚粉剤（試作品）と殺菌剤：トリフルミ
ゾ−ル水和剤を成分製剤として用い、水不溶性の酢酸ビ
ニルエチレン共重合樹脂水性エマルジョンを含むコ−ト
液で被覆した混合被覆モミ：Example 4: Benfuracarb / triflumizole mixed coating insecticide used for controlling rice weevil: benfuracarb [ethyl = N- [2,3-dihydro-2,2-dimethylbenzofuran-7-yloxycarbonyl (methyl ) Aminothio] -N-isopropyl-β-alanina-
40% concentrated powder (prototype) and fungicide: triflumizole wettable powder as a component formulation, and a mixed coating fir coated with a coating solution containing a water-insoluble vinyl acetate ethylene copolymer resin aqueous emulsion :
【００４５】[0045]
【表６】[Table 6]
【００４６】[0046]
【表７】[Table 7]
【００４７】被覆液は次のように混合し緩やかなスラリ
−状液として準備した。トリフルミゾ−ル水和剤０．５
ｇ、蒸留水８．５ｇ、第４表に示したコ−ト液２０ｇと
の混合液に第３表に示したベンフラカルブ４０％濃厚粉
剤７．５ｇを徐々に加えた。製剤操作は実施例１で使用
した装置にモミ３００ｇを仕込み回転させ、被覆液を滴
下し得られた湿品製剤を乾燥してモミ１Ｋｇ当たりトリ
フルミゾ−ル０．５ｇ、ベンフラカルブ１０ｇを含む被
覆モミ３０５ｇを得た。The coating liquid was mixed as follows to prepare a mild slurry liquid. Triflumizole wettable powder 0.5
g, distilled water 8.5 g, and a mixed solution of 20 g of the coating liquid shown in Table 4 were gradually added with 7.5 g of benfracarb 40% thick powder shown in Table 3. For the preparation operation, 300 g of fir was charged into the apparatus used in Example 1 and rotated, and the coating solution was added dropwise to obtain a wet preparation, which was dried and coated with 305 g of coated fir containing 0.5 g of triflumizole and 10 g of benflacarb per 1 kg of fir. Got
【００４８】実施例５：トリフルミゾ−ル被覆モミ トリフルミゾ−ル水和剤と水不溶性のアクリルスチレン
共重合樹脂水性エマルジョンを用いた被覆モミ：Example 5: Triflumisol Coated Fir A coating fir using triflumizole wettable powder and water-insoluble acrylic styrene copolymer resin aqueous emulsion:
【表８】[Table 8]
【００４９】第５表に示したコ−ト液１１．２５ｇとト
リフルミゾ−ル水和剤０．５ｇを混合して被覆液とし
た。製剤操作は実施例１で使用した装置にモミ３００ｇ
を仕込み回転させ被覆液を滴下した。得られた湿品製剤
を乾燥し製品１Ｋｇ当たりトリフルミゾ−ル０．５ｇを
含む被覆モミ２９７ｇを得た。A coating solution was prepared by mixing 11.25 g of the coating solution shown in Table 5 and 0.5 g of triflumizole wettable powder. Formulation was carried out by using the apparatus used in Example 1 with 300 g of fir.
Was charged and rotated to drop the coating liquid. The obtained wet preparation was dried to obtain 297 g of coated fir containing 0.5 g of triflumizole per 1 kg of the product.
【００５０】実施例６：トリフルミゾ−ル被覆モミ １５％トリフルミゾ−ル乳剤を成分製剤とし水不溶性の
アクリル共重合樹脂水性エマルジョンを用いた被覆モ
ミ：Example 6 Trifumisol Coated Fir A 15% triflumole emulsion was used as a component preparation and a water-insoluble acrylic copolymer resin aqueous emulsion was used to coat fir:
【表９】[Table 9]
【００５１】第６表に示したコ−ト液１１．２５ｇとト
リフルミゾ−ル乳剤１ｇを混合して被覆とした。製剤操
作は実施例１で使用した装置にモミ３００ｇを仕込み回
転させ被覆液を滴下した。得られた湿品製剤を乾燥し製
品１Ｋｇ当たりトリフルミゾ−ル０．５ｇを含む被覆モ
ミ２９７ｇを得た。A coating was prepared by mixing 11.25 g of the coating solution shown in Table 6 and 1 g of triflumole emulsion. For the preparation operation, 300 g of fir was charged into the apparatus used in Example 1 and rotated, and the coating solution was dropped. The obtained wet preparation was dried to obtain 297 g of coated fir containing 0.5 g of triflumizole per 1 kg of the product.
【００５２】実施例７：パクロブトラゾール被覆モミ 酢酸ビニルエチレン共重合樹脂を用いた被覆モミ：Example 7: Paclobutrazol Coated Fir A coated fir with vinyl acetate ethylene copolymer resin:
【表１０】第７表に示したコ−ト液１２ｇとパクロブトラゾール
（クレーと共に微粉砕した成分９０％を含む粉体）を１
ｇ混合して被覆液とした。実施例１で使用した装置にモ
ミ３００ｇを仕込み回転させ被覆液を滴下した。得られ
た湿品製剤を自然乾燥して製品１Ｋｇ当たりパクロブト
ラゾール３ｇを含む被覆モミ２９７ｇを得た。[Table 10] 12 g of the coating liquid shown in Table 7 and 1 of paclobutrazol (a powder containing 90% of components finely pulverized with clay)
g to prepare a coating liquid. 300 g of fir was charged into the apparatus used in Example 1 and rotated to drop the coating liquid. The obtained wet preparation was air-dried to obtain 297 g of a coated fir containing 3 g of paclobutrazol per 1 kg of the product.
【００５３】比較例１：フェンチオン乳剤と蒸留水を混
合し含浸液とし、これを含浸させた含浸モミ： フェンチオン乳剤０．０９ｇと蒸留水１１．２５ｇを混
合し含浸液とした。これを実施例１で使用した装置にモ
ミ３００ｇを仕込み、回転させ含浸液を滴下し得られた
湿品製剤を乾燥してモミ１Ｋｇ当たりフェンチオン０．
１５ｇを含む含浸モミ２９６ｇを得た。Comparative Example 1: Fenthion emulsion and distilled water were mixed to prepare an impregnating solution. Impregnation fir impregnating this: 0.09 g of the fenthion emulsion and 11.25 g of distilled water were mixed to prepare an impregnating solution. 300 g of fir was charged into the apparatus used in Example 1, and the impregnating solution was added by spinning and dried to obtain a wet preparation, which was dried to give 0.1 g of firthione per 1 g of fir.
296 g of impregnated fir containing 15 g were obtained.
【００５４】比較例２：ベンフラカルブ、トリフルミゾ
−ル混合被覆モミ 水溶性接着剤ＰＶＡ（ポリビニルアルコ−ル）による被
覆モミ：Comparative Example 2: Benfuracarb / triflumizole mixed coating fir Water-soluble adhesive PVA (polyvinyl alcohol) fir coating:
【表１１】トリフルミゾ−ル水和剤０．５ｇ、蒸留水８．５ｇ、第
８表に示したコ−ト液２０ｇとの混合液にベンフラカル
ブ４０％濃厚粉剤７．５ｇを徐々に加えて被覆液とし
た。製剤操作は実施例１で使用した装置にモミ３００ｇ
を仕込み回転させ被覆液を滴下した。得られた湿品製剤
を乾燥し製品１Ｋｇ当たりトリフルミゾ−ル０．５ｇ、
ベンフラカルブ１０ｇを含む被覆モミ３０６ｇを得た。[Table 11] A mixture of 0.5 g of triflumizole wettable powder, 8.5 g of distilled water and 20 g of the coating liquid shown in Table 8 was gradually added with 7.5 g of benfuracarb 40% thick powder to give a coating liquid. Formulation was carried out by using the apparatus used in Example 1 with 300 g of fir.
Was charged and rotated to drop the coating liquid. The obtained wet preparation is dried to give 0.5 g of triflumole per 1 kg of the product,
306 g of coated fir containing 10 g of benfracarb were obtained.
【００５５】比較例３：トリフルミゾ−ル含浸モミ トリフルミゾ−ル乳剤を成分製剤とした含浸モミ：１５
％トリフルミゾ−ル乳剤１ｇと蒸留水１１．２５ｇを混
合して含浸液とした。製剤操作は実施例１で使用した装
置にモミ３００ｇを仕込み回転させ被覆液を滴下した。
得られた湿品製剤を乾燥し製品１Ｋｇ当たりトリフルミ
ゾ−ル０．５ｇを含む含浸モミ２９７ｇを得た。Comparative Example 3: Triflumole Impregnated Fir Impregnated fir using a triflumole emulsion as a component preparation: 15
% Triflumizole emulsion 1 g and distilled water 11.25 g were mixed to obtain an impregnating solution. For the preparation operation, 300 g of fir was charged into the apparatus used in Example 1 and rotated, and the coating solution was dropped.
The obtained wet preparation was dried to obtain 297 g of an impregnated fir containing 0.5 g of triflumizole per 1 kg of the product.
【００５６】次に実施例とそれにかかわる比較例につい
て得られた製剤の水中溶出量を測定し抑制効果を比較し
た。 試験例１：（フェンチオン／含浸または被覆モミ）の溶
出試験 （１）溶出試験条件：試料８０ｇを３００mLのビ−カ−
に入れ水１６０ｇを加え蓋をして２５℃で保管した。２
４時間後水を全量移し換えたのち新たに水１６０ｇを入
れた。移し換えた水は分析試料とした。さらに２４時間
放置し全量をあけ換えて２回目の試料とした。同様操作
にて５回目の試料水まで採取し分析試料とした。 （２）分析条件：試料水の一部を取りジクロロメタンで
分配し、濃縮後ドライアップしアセトンで定容としメチ
ルシリコンを薄膜とするキャピラルカラム装着のガスク
ロマトグラフィ−（ＮＰ−ＦＩＤ）にて定量した。Next, the elution amount in water of the preparations obtained in Examples and Comparative Examples related thereto was measured and the inhibitory effects were compared. Test Example 1: Dissolution test of (fenthion / impregnation or coated fir) (1) Dissolution test conditions: 80 g of sample was added to a beaker of 300 mL.
160 g of water was added, and the mixture was covered and stored at 25 ° C. Two
After 4 hours, the entire amount of water was transferred, and 160 g of water was newly added. The transferred water was used as an analytical sample. The sample was left for a further 24 hours and the whole amount was changed to obtain a second sample. By the same operation, up to the fifth sample water was collected and used as an analytical sample. (2) Analytical conditions: Part of sample water is taken, distributed with dichloromethane, concentrated, dried up, made to volume with acetone, and made into a thin film of methyl silicon. Gas chromatography equipped with a capillary column (NP-FID) is used for quantification. did.
【００５７】[0057]
【表１２】[Table 12]
【００５８】３）測定結果3) Measurement result
【表１３】実施例２、実施例３の酢酸ビニルエチレン共重合樹脂に
よる被覆モミは比較例１含浸モミ（被覆剤なし）に対し
てフェンチオンの水層への溶出を抑制した。[Table 13] The fir coated with the vinyl acetate ethylene copolymer resin of Examples 2 and 3 suppressed the elution of fenthion into the aqueous layer in comparison with the impregnated fir of Comparative Example 1 (no coating agent).
【００５９】試験例２：（ベンフラカルブ、トリフルミ
ゾ−ル混合被覆モミ）の溶出試験。 注：被覆剤の比較 溶出試験条件は試験例１と同様で、分析条件は以下に示
す。試料水の一部をとりジクロロメタンで分配し、濃縮
後ドライアップしアセトンで定容とする。定量はＮＰ−
ＦＩＤ検出器を装備したガスクロマトグラフィ−で行っ
た。カラムはガラス製で内径２mm、長さ１ｍで充填剤は
２％シリコンＯＶ−２１０＋１．５％ＯＶ−１７／クロ
モソルブＷ（ＨＰ）１００〜１２０メッシュを用いた。Test Example 2: Dissolution test of (benfuracarb, triflumizole mixed coating fir). Note: Comparison of coating agents The dissolution test conditions are the same as in Test Example 1, and the analysis conditions are shown below. Take part of the sample water and distribute with dichloromethane. After concentration, dry up and make up to volume with acetone. Quantitative is NP-
It was performed by gas chromatography equipped with a FID detector. The column was made of glass and had an inner diameter of 2 mm and a length of 1 m, and the packing material was 2% silicon OV-210 + 1.5% OV-17 / Chromosolve W (HP) 100 to 120 mesh.
【００６０】次に測定結果を示す。（参考値；ベンフラ
カルブの水溶解度：８ｐｐｍ）Next, the measurement results are shown. (Reference value: water solubility of benflacarb: 8 ppm)
【表１４】比較例２は１０分後に被覆膜が溶脱し赤色色素が水中に
分散した。２日後には水和剤、濃厚粉剤の白色粉体が脱
落しモミがほぼ完全に露出した。ＥＶＡ被覆はベンフラ
カルブ、トリフルミゾール成分製剤を保持し、脱落を防
止した。[Table 14] In Comparative Example 2, the coating film was leached out after 10 minutes and the red dye was dispersed in water. Two days later, the white powder of the wettable powder and the thick powder fell off, and the fir was almost completely exposed. The EVA coating retained the benfuracarb, triflumizole component formulation to prevent shedding.
【００６１】試験例３：（トリフルミゾ−ル乳剤被覆モ
ミと含浸モミ）の溶出比較試験。 注：被覆剤有無の比較 溶出試験条件は試験例１と同様で、分析条件は以下に示
す。試料水の一部をとりジクロロメタンで分配し、濃縮
後ドライアップしアセトニトリルで定容とし０．２μテ
フロン製ディスポ−ザブルフィルタ−にて濾過し、紫外
部吸収検出器付き高速液体クロマトグラフィ−にて定量
を行った。分離管は内径４．６mm、長さ２５cmのステン
レス管、充填剤はシリカゲルにオクタデシルシランを化
学的に結合させたものを用いた。Test Example 3: Elution comparison test of (triflumizole emulsion-coated fir and impregnated fir). Note: Comparison of presence / absence of coating agent The dissolution test conditions are the same as in Test Example 1, and the analysis conditions are shown below. A portion of the sample water is taken and distributed with dichloromethane. After concentration, it is dried up, made up to a constant volume with acetonitrile, filtered with a 0.2μ Teflon disposable filter, and quantified by high performance liquid chromatography with an ultraviolet absorption detector. I went. The separation tube used was a stainless tube having an inner diameter of 4.6 mm and a length of 25 cm, and the filler used was silica gel to which octadecylsilane was chemically bound.
【００６２】次に測定結果を示す。 （参考値；トリフルミゾ−ルの水溶解度：１２．５ｐｐ
ｍ）Next, the measurement results are shown. (Reference value; water solubility of triflumizole: 12.5 pp
m)
【表１５】実施例６の「ＡＣＰ被覆＝アクリル共重合樹脂被覆モ
ミ」は比較例３の含浸モミ（被覆材なし）に比し溶出を
抑制した。[Table 15] The "ACP coating = acrylic copolymer resin-coated fir" of Example 6 suppressed elution as compared with the impregnated fir of Comparative Example 3 (no coating material).
【００６３】栽培例１：（ベンフラカルブ、トリフルミ
ゾ−ル混合被覆モミ）の殺虫試験 実施例４の混合被覆モミを用いて浸種、催芽、播種、育
苗、移植を行い栽培し対象害虫に対する防除効果を同一
成分の慣行育苗箱施用のそれと比較した。 (1) 浸種〜移植の操作 被覆モミ１６０ｇを容器に取り２倍の水を加え２５℃で
４日放置した。この間３回水を交換した。育苗器（２９
℃）で２日放置し育苗マットを敷いた育苗箱に播種、覆
土し、温室に移し常法により育苗し２０日後に移植し
た。無処理モミは（実施例１：トリフルミゾ−ル被覆モ
ミ）を同様に操作し移植した。対象供試薬剤にはオンコ
ル粒５（大塚化学（株）製の商品名、ベンフラカルブ５
％粒剤）を移植直前に育苗箱当たり３２ｇ施用した。Cultivation Example 1: (Benfuracarb, triflumizole mixed coated fir) insecticidal test The mixed coated fir of Example 4 was cultivated by soaking, germination, seeding, seedling raising and transplanting, and the same control effect against the target pests was obtained. The composition was compared with that of conventional nursery box application. (1) Immersion-Transplantation Operation 160 g of coated fir was placed in a container, double the amount of water was added, and the mixture was left at 25 ° C. for 4 days. During this time, the water was changed 3 times. Nursery equipment (29
The seedlings were left to stand for 2 days at 0 ° C.), seeded in a seedling raising box covered with a seedling raising mat, covered with soil, transferred to a greenhouse, raised seedlings by a conventional method, and transplanted after 20 days. The untreated fir (Example 1: triflumizole-coated fir) was similarly operated and transplanted. As the target reagent agent, oncol granules 5 (trade name, Benfuracarb 5 manufactured by Otsuka Chemical Co., Ltd.)
% Granules) was applied at 32 g per seedling raising box immediately before transplantation.
【００６４】[0064]
【表１６】[Table 16]
【００６５】[0065]
【表１７】[Table 17]
【００６６】[0066]
【表１８】＊１．１０ａ当りモミ４Ｋｇ播種として（ａｉ １０ｇ／Ｋｇモミ）×４→４０ ｇ ＊２．１０ａ当たり２５箱移植として（３２ｇ×０．０５×２５） →４０ｇ[Table 18] * 1. As 4g of fir seeds per 10a (ai 10g / Kg fir) x 4-> 40g * As 25 box transplants per 2.10a (32g x 0.05 x 25)-> 40g
【００６７】[0067]
【発明の効果】育苗箱施用で処理される農薬剤と同種、
多くとも同量の農薬成分及び場合によってはイネ苗移植
前後に水田に処理される農薬製剤と同種、多くとも同量
の成分を、予めモミに水不溶性の接着性樹脂水性エマル
ジョンに混和して被覆した稲籾種子の農薬成分は、水浸
種、播種、育苗の後、水田に移植されたあと、個別の農
薬散布の目的を達成できる期間、例えば少なくとも一ヵ
月にわたって効力が持続した。この持続は、水浸種で農
薬成分が脱落せず、溶出が持続的になったことによる。
この結果、農薬剤の移植前の育苗箱施用と移植前後の水
田施用の省略が可能になった。又、適当な時期に農薬の
効果を発揮させることのできる直播用の農薬被覆稲籾種
子としても使用することが可能になった。[Effects of the Invention] The same kind of agrochemicals that are treated by applying nursery boxes,
At most the same amount of pesticide components and, in some cases, the same type as the pesticide formulation to be treated in the paddy field before and after rice seedling transplantation, at most the same amount of components are mixed in advance with the water-insoluble adhesive resin aqueous emulsion and coated on the fir. The pesticide component of the rice paddy seeds, after being soaked in seeds, sown, raised seedlings, and then transplanted into paddy fields, had a long-lasting effect for a period during which the purpose of individual pesticide application could be achieved, for example, at least one month. This persistence is due to the fact that the pesticide component did not fall off due to the water-soaked seeds, and the elution became persistent.
As a result, it became possible to omit the application of the pesticide agent to the nursery box before transplantation and the application of paddy fields before and after transplantation. Further, it has become possible to use it as a pesticide-coated rice seed seed for direct sowing, which can exert the effect of the pesticide at an appropriate time.
フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ａ０１Ｎ 25/34 Ａ０１Ｎ 25/34 Ｚ 43/50 43/50 Ｋ Ｎ 43/653 43/653 Ｃ 47/18 47/18 57/14 57/14 ＤContinuation of the front page (51) Int.Cl.6 Identification number Reference number within the agency FI Technical display area A01N 25/34 A01N 25/34 Z 43/50 43/50 K N 43/653 43/653 C 47/18 47 / 18 57/14 57/14 D
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11635495AJPH08275621A (en) | 1995-02-08 | 1995-04-18 | Agrochemical-coated rice unhulled rice seed |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7-43550 | 1995-02-08 | ||
| JP4355095 | 1995-02-08 | ||
| JP11635495AJPH08275621A (en) | 1995-02-08 | 1995-04-18 | Agrochemical-coated rice unhulled rice seed |
| Publication Number | Publication Date |
|---|---|
| JPH08275621Atrue JPH08275621A (en) | 1996-10-22 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11635495APendingJPH08275621A (en) | 1995-02-08 | 1995-04-18 | Agrochemical-coated rice unhulled rice seed |
| Country | Link |
|---|---|
| JP (1) | JPH08275621A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002532390A (en)* | 1998-12-14 | 2002-10-02 | シンジェンタ・パティシペーションズ・アクチェンゲゼルシャフト | Insecticidal seed coating |
| WO2005077170A1 (en)* | 2004-02-16 | 2005-08-25 | Basf Aktiengesellschaft | Formulation for seed treatment comprising polymeric stickers |
| JP2007014234A (en)* | 2005-07-06 | 2007-01-25 | Sumika Agrotech Co Ltd | Method for producing coated seed |
| WO2016013507A1 (en)* | 2014-07-25 | 2016-01-28 | 住友化学株式会社 | Coated rice seed and method for producing same |
| WO2016013506A1 (en)* | 2014-07-25 | 2016-01-28 | 住友化学株式会社 | Coated rice seed and method for producing same |
| WO2016055439A1 (en)* | 2014-10-07 | 2016-04-14 | Bayer Cropscience Aktiengesellschaft | Method for treating rice seed |
| JP2016202175A (en)* | 2015-04-17 | 2016-12-08 | 住友化学株式会社 | Coated rice seed and method for producing same |
| JP2017535254A (en)* | 2014-10-07 | 2017-11-30 | バイエル・クロップサイエンス・アクチェンゲゼルシャフト | Rice seed treatment method |
| WO2018123130A1 (en)* | 2016-12-26 | 2018-07-05 | 昭和電工株式会社 | Method for manufacturing coated wet-field rice seed paddy that can be subjected to seed-soaking treatment |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002532390A (en)* | 1998-12-14 | 2002-10-02 | シンジェンタ・パティシペーションズ・アクチェンゲゼルシャフト | Insecticidal seed coating |
| WO2005077170A1 (en)* | 2004-02-16 | 2005-08-25 | Basf Aktiengesellschaft | Formulation for seed treatment comprising polymeric stickers |
| JP2007014234A (en)* | 2005-07-06 | 2007-01-25 | Sumika Agrotech Co Ltd | Method for producing coated seed |
| JPWO2016013507A1 (en)* | 2014-07-25 | 2017-04-27 | 住友化学株式会社 | Coated rice seed and method for producing the same |
| WO2016013506A1 (en)* | 2014-07-25 | 2016-01-28 | 住友化学株式会社 | Coated rice seed and method for producing same |
| CN106535613A (en)* | 2014-07-25 | 2017-03-22 | 住友化学株式会社 | Coated rice seed and method for producing same |
| JPWO2016013506A1 (en)* | 2014-07-25 | 2017-04-27 | 住友化学株式会社 | Coated rice seed and method for producing the same |
| WO2016013507A1 (en)* | 2014-07-25 | 2016-01-28 | 住友化学株式会社 | Coated rice seed and method for producing same |
| CN106659116A (en)* | 2014-07-25 | 2017-05-10 | 住友化学株式会社 | Coated rice seed and method for producing same |
| CN106535613B (en)* | 2014-07-25 | 2020-03-24 | 住友化学株式会社 | Coated rice seed and preparation method thereof |
| WO2016055439A1 (en)* | 2014-10-07 | 2016-04-14 | Bayer Cropscience Aktiengesellschaft | Method for treating rice seed |
| CN106998680A (en)* | 2014-10-07 | 2017-08-01 | 拜耳作物科学股份公司 | Method for handling seed rice |
| JP2017535254A (en)* | 2014-10-07 | 2017-11-30 | バイエル・クロップサイエンス・アクチェンゲゼルシャフト | Rice seed treatment method |
| JP2016202175A (en)* | 2015-04-17 | 2016-12-08 | 住友化学株式会社 | Coated rice seed and method for producing same |
| WO2018123130A1 (en)* | 2016-12-26 | 2018-07-05 | 昭和電工株式会社 | Method for manufacturing coated wet-field rice seed paddy that can be subjected to seed-soaking treatment |
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