【発明の詳細な説明】産業上の利用分野本発明は、水稲中成苗の育生方法に関し、詳しくは、育
苗箱による育苗において、播種床と覆土の肥料含有量を
異ならしめ、必要肥料の大半を覆る。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a method for raising medium-grown paddy rice seedlings, and more specifically, in raising seedlings in a seedling box, the fertilizer content of the sowing bed and covering soil is different, and most of the required fertilizer is cover.
従来の技術従来、機械田植用の水稲苗は、統一された規格の育苗箱
（内法５８ａｎ Ｘ ２８ａｎ Ｘ ３ ｃＩＩ）を用
い、市販されている土壌系または非土壌系の肥料入り資
材、或いは農家で滅菌した土壌に肥料成分を混合し、ｐ
Ｈ調整を行ったものを播種床とし、播種後覆土して育苗
が行われている。この覆土としては、播種床が土壌系の
場合、非土壌系の場合共に土壌が用いられ、播種床が土
壌系の場合には、同じものを用いるのが背通であり、非
土壌系の場合には、必要肥料の全量を播種床に含有させ
て覆土には肥料を添加しない場合が多い。Conventional technology Traditionally, paddy rice seedlings for mechanical rice transplanting were produced using seedling boxes of unified standards (internal law 58an x 28an Fertilizer ingredients are mixed with soil sterilized by
The H-adjusted material is used as a seeding bed, and after sowing, the seedlings are raised by covering with soil. As this covering soil, soil is used for both soil-based and non-soil-based seeding beds.If the seeding bed is soil-based, it is a back cover to use the same material, and for non-soil-based seeding beds, soil is used. In many cases, the entire amount of required fertilizer is contained in the seed bed and no fertilizer is added to the covering soil.
発明が解決しようとする課題しかしながら、個々の農家で調整された１種床では、肥
料成分過剰に起因する発芽障害、発根不良、犯やけ等の
障害を起したり、反対に、肥料切れ症状を招いたりする
ことが、しばしば見られる。Problems to be Solved by the Invention However, single-seed beds adjusted by individual farmers can cause problems such as germination failure, poor rooting, and rotting due to excessive fertilizer components, and conversely, symptoms of fertilizer depletion. It is often seen inviting people.
また、非土壌系資材の場合には、一般に肥料尿持力が乏
しいため、−時に多量の肥料の溶出が起り易く、肥料成
分過剰による障害の危険が大きい、また、ある種の非土
壌系資材の場合には、肥料添加方法が技術的に完成され
ておらず、肥料成分の流亡性が大きい等の問題を残して
おり、障害の原因となっている。In addition, in the case of non-soil-based materials, the fertilizer retention capacity is generally poor, so sometimes a large amount of fertilizer is easily leached out, and there is a high risk of damage due to excessive fertilizer components. In this case, the method of adding fertilizer has not been technically perfected, and there remain problems such as the tendency of fertilizer components to wash away, causing problems.
また、轟近、特に寒冷地位おいて、水稲苗を中詰ないし
成苗にまで箱育苗した後、移植することが行われるよう
になってきている。水稲苗を中詰ないし成苗間で箱育苗
するためには、育苗期間も長く、必要肥料の量も多くな
り、その全量を予め播種床に保持させると、肥料過剰に
よる障害を起す恐れがあるため、播種床の肥料を少なく
し、通常１〜２回の追肥を必要としている。そこで、追
肥することなく中成苗まで箱育苗する方法の開発が望ま
れている。In addition, it has become common practice to grow paddy rice seedlings in boxes to medium-sized or mature seedlings in a particularly cold climate, and then transplant them. In order to grow paddy rice seedlings in boxes or between mature seedlings, the seedling growing period is long and the amount of fertilizer required is large.If the entire amount is kept in the seed bed in advance, there is a risk of problems due to excessive fertilizer. Therefore, it is necessary to reduce the amount of fertilizer in the seed bed, and usually requires top-dressing once or twice. Therefore, it is desired to develop a method for raising seedlings in boxes until they reach mid-adult stage without fertilizing.
本発明は、従来の技術における上記のような問題点に鑑
みてなされたものである。即ち、本発明は、従来の方法
における脂やけ等の肥料成分過剰による障害が、根部と
高濃度塩類溶液との接触によって起こることに着目して
なされたものであって、その目的は、根部と直接接触し
ない覆土部分に、必要な肥料の全部又は大半を保持させ
、追肥の必要のなく、かつ肥料の過剰障害のない水稲中
・成苗の育成方法を提供するものである。The present invention has been made in view of the above-mentioned problems in the conventional technology. That is, the present invention was made by focusing on the fact that the problems caused by excess fertilizer components such as fat burn in conventional methods are caused by contact between roots and highly concentrated salt solutions. To provide a method for growing submerged and mature seedlings of paddy rice, which retains all or most of the necessary fertilizer in the covered soil area that does not come in direct contact with it, eliminates the need for additional fertilization, and prevents problems caused by excessive fertilizer.
課題を解決す今ための手段及び作用本発明の水稲中成苗の育生方法は、肥料成分として１．
窒素（Ｎ）、燐′＃！Ｉ（Ｐ２Ｏ３）、及び加里（Ｋ２
Ｏ）を、播種床構成資材１００ ｃｉ？当りそれぞれ０
〜０．１９含む播種床に種籾を播種した後、窒素（Ｎ）
、燐酸（Ｐ Ｏ）、及び加里（Ｋ２Ｏ）をそれぞれ０
．２〜１．０重量％含有する覆土用土壌で覆土すること
を特徴とする。Current Means and Effects for Solving the Problems The method for growing medium-grown paddy rice seedlings of the present invention uses 1. as fertilizer components.
Nitrogen (N), phosphorus'#! I (P2O3), and Kari (K2
O), 100 ci? 0 hits each
After sowing the seed rice in a seed bed containing ~0.19 nitrogen (N)
, phosphoric acid (P O), and potassium (K2O), respectively.
．． It is characterized by covering with soil for covering soil containing 2 to 1.0% by weight.
本発明において、播種床を構成するための播種床構成資
材としては、土壌系資材及び非土壌系資材のいずれを用
いることも−できる、土壌系資材としては、山土、畑土
等の土壌を、ｐＨ５前後に調整し、ポリビニルアルコー
ル、カルボキシメチルセルローズ等の水溶性糊剤を用い
て粒径５〜３２メツシュ程度に造粒したもの、軽量化す
るために土壌に木質粉体や発泡樹脂粉体を混合して造粒
したもの、土壌を単に滅菌し、ｐＨ調整したもの等をあ
げることができる。また、非土壌系資材としては、ロッ
クウール、木材パルプ或いは発泡尿素樹脂等をマット状
に成形したものなどが利用できる。In the present invention, both soil-based materials and non-soil-based materials can be used as the material for constituting the seeding bed. As the soil-based material, soil such as mountain soil and field soil can be used. , adjusted to pH around 5 and granulated to a particle size of about 5 to 32 mesh using a water-soluble sizing agent such as polyvinyl alcohol or carboxymethyl cellulose, and wood powder or foamed resin powder in the soil to reduce weight. Examples include those made by mixing and granulating soil, and those obtained by simply sterilizing soil and adjusting the pH. Further, as the non-soil material, rock wool, wood pulp, foamed urea resin, etc. formed into a mat shape can be used.
播種床には、肥料成分を全く含ませないか、又は、窒素
、燐酸、及び加里を播種床構成資材１００−当りそれぞ
れ０．１ｇ以下含ませる。肥料成分を０．１ｇより多く
含ませることは、肥料成分の無駄な使用となり、また肥
料成分過剰による障害を引き起こすおそれがある。The seed bed contains no fertilizer components at all, or contains nitrogen, phosphoric acid, and potassium in an amount of 0.1 g or less per 100 kg of material constituting the seed bed. Including more than 0.1 g of fertilizer components results in wasted use of the fertilizer components, and may cause problems due to excessive fertilizer components.
一方、覆土用土壌には、高濃度に肥料成分を保持させた
土壌が用いられる・、すなわち、覆土用土壌には、肥料
成分として、窒素、リン酸、及び加里をそれぞれ０．２
〜１．０重量％保持させたものを用いる。この保持量は
、上記規格の育苗箱を用いて１ｋｇの覆土をした場合、
−箱当り窒素、リン酸、加里それ、ぞれ２〜１Ｇ、保持
させることを意味し、これは中詰或いは成苗育生に必要
な肥料成分の量の全部又は大半である。上記各肥料成分
が、０．２重量％よりも少ないと、肥料効果が十分に発
揮できなくなり、また１、０重量％よりも多くなると肥
料効果は飽和し、また、過剰障害のおそれもでてくる。On the other hand, the soil for covering soil is soil that retains fertilizer components at a high concentration.
-1.0% by weight is used. This retention amount is when using a seedling box of the above standard and covering it with 1 kg of soil.
- This means that 2 to 1 G of each of nitrogen, phosphoric acid, and potassium are retained per box, which is all or most of the amount of fertilizer components required for filling or growing seedlings. If each of the above fertilizer components is less than 0.2% by weight, the fertilizer effect cannot be fully exerted, and if it exceeds 1.0% by weight, the fertilizer effect is saturated, and there is also a risk of excessive damage. come.
保持させる肥料成分としては、通常使用されているもの
が使用でき、緩効性肥料成分や、コーティングなどの物
理的手段により供給速度を調整した緩効性肥料を使用す
ることもできる。As the fertilizer component to be retained, commonly used ones can be used, and slow-release fertilizer components and slow-release fertilizers whose supply rate is adjusted by physical means such as coating can also be used.
覆土用土壌は、滅菌し、ｐＨ調整し、上記量の肥料成分
を保持させるが、好ましくは、粒径５．〜３２メツシュ
に造粒したものが用いられる。覆土に高濃度に保持され
た肥料成分が、潅水などによって必要量ずつ徐々に床部
分に供給されるなめには、覆土用土壌は粒状化されてい
ることが望ましい、 ・また、覆土用土壌は肥料保持
力が高いものほど好ましい、肥料保持力は、塩基置換容
量が目安となるのであって、塩基置換容量４Ｇｍｓ／１
００ｇ以上のものならば、好ましく使用され矛。The soil for covering soil is sterilized, pH adjusted, and retains the above amount of fertilizer components, but preferably has a particle size of 5. Pelletized to ~32 mesh size is used. In order for the fertilizer components held in high concentration in the soil to be gradually supplied to the bed in the required amount through irrigation, etc., it is desirable that the soil for the soil to be covered be granular. The higher the fertilizer retention capacity, the better.The fertilizer retention capacity is based on the base substitution capacity, and the base substitution capacity is 4Gms/1.
If it is over 00g, it is preferably used.
また、被覆用土壌には、肥料保轡力や保水力を調整する
ために、補助的に腐植や高吸水性樹脂などを添加するこ
とも可能である。Furthermore, it is also possible to supplementally add humus, super absorbent resin, etc. to the covering soil in order to adjust the fertilizer retention capacity and water retention capacity.
本発明を実施するには、水稲育苗箱に、まず、肥料成分
として、窒素、燐酸、加里を、資材１００ｄ当りそれぞ
れＯ〜０．１ｇ含む播種床構成資材を詰めて播種床を形
成し、種籾を播種する０次いで、窒素、燐酸、及び加里
をそれぞれ０．２〜１．０重量％含有する覆土用土壌で
０．７個前後に覆土することによって行う。To carry out the present invention, a paddy rice seedling box is first filled with a seeding bed constituting material containing 0 to 0.1 g of each of nitrogen, phosphoric acid, and potassium as fertilizer components per 100 d of material to form a seed bed. Then, about 0.7 seeds are covered with soil for covering soil containing 0.2 to 1.0% by weight of each of nitrogen, phosphoric acid, and potassium.
水稲育苗箱は、田植え機械の規格の統一と共に、その規
格も統一され、内法５８ｃｍ Ｘ ２８ｃｍ Ｘ ３
ａｍのものが、全国的に用いられており、この規格の水
稲育苗箱で水稲苗の育生を行う場合には、上記の播種床
構成資材により、厚さ２唾程の播種床を作り、その播種
床に種籾を播種し、その後、把料成分を高濃度に含有す
る上記覆土用土壌を１６２４−当り、即ち上記鞘当り、
窒素、リン酸、及び加里それぞれ２〜１０ｆになるよう
に覆土する。これは中詰或いは成苗育苗に必要な肥料成
分の量の全部又は大半である。Along with the unification of the standards for rice-planting machines, the specifications of the rice seedling box have also been unified, and the inner dimensions of the rice seedling box are 58 cm x 28 cm x 3.
am is used nationwide, and when raising rice seedlings in rice seedling boxes of this standard, make a seed bed about 2 spits thick using the above-mentioned seed bed construction materials, and then Seed rice was sown on the sowing bed, and then the above-mentioned soil for covering soil containing a high concentration of grain components was applied per 1624 kg, that is, per the above-mentioned pods,
Cover the soil with 2 to 10 f each of nitrogen, phosphoric acid, and potassium. This is all or most of the amount of fertilizer components required for filling or growing seedlings.
従来は、土壌系資材及び非土壌系資材のいずれのものを
用いる場合においても、育苗に必要な肥料成分は、主と
して播種床中に混合され、必要によっては、追肥として
施用されているが、本発明においては、播種床構成資材
には、肥料成分を添加しないか、又は必要量の一部、す
なわち、播種床構成資材１ｏｔａ／当り、窒素、リン酸
、及び加１里それぞれ０．１ｇ以下しか保持させていな
い、この様に根部が接触する播種床部分には、肥料成分
を全く保持させないか、或いは、その量を従来の方法に
比べて大巾に少なくしたから、過剰肥料による障害の恐
れが解消され、また、肥料成分を保持させ難い非土壌系
資材を利用し易くすることができる。また、覆土用土壌
には、中成苗に成長するのに必要な量の全部又は大半の
肥料成分が含まれており、潅水によって肥料成分は徐々
に溶出して播種床に浸透するから、中面ないし成苗の育
成に効果的に使用されることになる。したがって、必要
育成期間、肥料効果を維持させることができる。Conventionally, regardless of whether soil-based materials or non-soil-based materials are used, the fertilizer components necessary for raising seedlings are mainly mixed in the seed bed and applied as top dressing if necessary. In the invention, fertilizer components are not added to the seed bed material, or only a portion of the required amount, that is, 0.1 g or less of each of nitrogen, phosphoric acid, and potassium per 1 ota of seed bed material is added. In the seed bed area where the roots come into contact, no fertilizer components are retained, or the amount thereof is greatly reduced compared to conventional methods, so there is no risk of damage due to excessive fertilizer. This also makes it easier to use non-soil materials that are difficult to retain fertilizer components. In addition, the soil for covering soil contains all or most of the fertilizer components necessary for the growth of semi-adult seedlings, and the fertilizer components are gradually eluted by watering and permeate into the seeding bed. It will be effectively used for growing seedlings or adult seedlings. Therefore, the fertilizer effect can be maintained for the required growing period.
実施例以下、本発明を実施例によって説明する。なお、％は重
量％を意味する。EXAMPLES Hereinafter, the present invention will be explained by examples. In addition, % means weight %.
実施例１塩基置換容量６２１１１１３／１００Ｑの混合土壌を粉
砕し、４０メツシユ以下に篩分けし、硫安、重焼燐、及
び塩化加里を、窒素０．５％、燐酸及び加里各々０．３
％となるように混合し、ｐＨ５に調整した。更に低重合
ポリビニルアルコールを、濃度３％水溶液として被覆用
培土全量に対して０．３％となるように添加した後、５
〜３２メツシユに造粒し、滅菌、加熱乾燥して覆土用培
土を得た。Example 1 Mixed soil with a base substitution capacity of 6211113/100Q was crushed and sieved to 40 mesh or less, and ammonium sulfate, heavy phosphorus, and potassium chloride were added to nitrogen at 0.5%, phosphoric acid, and potassium at 0.3% each.
% and adjusted to pH 5. Furthermore, after adding low-polymerized polyvinyl alcohol as a 3% aqueous solution at a concentration of 0.3% to the total amount of coating soil,
The mixture was granulated into ~32 meshes, sterilized, and dried by heating to obtain soil for covering soil.
上記規格の水稲育苗箱に、滅菌し、ｐＨ５に調整した山
土を２■の厚さに詰め、催芽籾１２０ｇを播種し、十分
に潅水してから、上記覆土用培±１ｋｇで覆土した。A paddy rice seedling box of the above specification was filled with sterilized mountain soil adjusted to pH 5 to a thickness of 2 cm, 120 g of sprouting paddy was sown, thoroughly watered, and then covered with ±1 kg of the above-mentioned soil covering medium.
３２℃に設定した発芽器中に、三日装置いて出芽させ、
３５日間育苗して生育状態を調査した。Place the seeds in a germinator set at 32°C for three days to germinate.
Seedlings were raised for 35 days and their growth status was investigated.
発芽障害や生育の不揃いは見られず、順調に生育し、紫
色も良好であった。３５日後の調査結果は、次の通りで
あった。No problems with germination or uneven growth were observed, the plants grew smoothly and had a good purple color. The investigation results after 35 days were as follows.
草丈 １７．２個葉数 ３．５第１葉鞘高 ３．２個第２葉鞘高 ６．８ＣＩ１１茎葉乾物重 ２４．０■／本実施例２塩基置換容量４８ｎｅ／１０（Ｉｇの混合土壌を粉砕し
、４０メツシユ以下に篩分けし、硫安、重焼燐、及び塩
化加里を、窒素、燐酸及び加里各々０．２％となるよう
に混合し、ｐＨ５に調整しな、更に低重合ポリビニルア
ルコールを、濃度３％水溶液として被覆用培土全量に対
して０．１５％となるように添加した後、５〜３２メツ
シユに造粒し、滅菌、加熱乾燥して覆土用培土を得た。Plant height 17.2 Number of leaves 3.5 First leaf sheath height 3.2 Second leaf sheath height 6.8CI11 Dry weight of stems and leaves 24.0 / This Example 2 Base replacement capacity 48ne / 10 (ground mixed soil of Ig Then, sieve to 40 mesh or less, mix ammonium sulfate, heavy sintered phosphorus, and potassium chloride so that nitrogen, phosphoric acid, and potassium are each 0.2%, adjust the pH to 5, and add low polymerized polyvinyl alcohol. , was added as a 3% aqueous solution at a concentration of 0.15% to the total amount of the covering soil, and then granulated into 5 to 32 meshes, sterilized, and dried by heating to obtain the covering soil.
上記規格の水稲育苗箱に、市販肥料入り水稲育苗用パル
プ系マヅト（窒素、燐酸、加里それぞれ０．０５１１
ｇ ／ １００．ｃシ含有）をセットし、十分に潅水し
てから、催芽籾１２０ｇを播種し、更に０．５１を潅水
して籾ならしし、上記覆土用培土１ ｋｇで覆土した。In a paddy rice seedling box of the above specifications, add commercially available fertilizer for paddy rice seedling raising pulp type MADUT (nitrogen, phosphoric acid, potassium 0.0511 each).
g/100. After thoroughly watering, 120 g of germinated paddy was sown, and the paddy was further watered with 0.51 g of water to level the paddy, and then covered with 1 kg of the above-mentioned culture soil.
３２℃に設定した発芽器中に、三日装置いて出芽させ、
３５日間育苗して生育状態を調査した。Place the seeds in a germinator set at 32°C for three days to germinate.
Seedlings were raised for 35 days and their growth status was investigated.
発芽障害や生育の不揃いは見られず、紫色も良好であっ
た。３５日後の調査結果は、次の通りであった。No problems with germination or uneven growth were observed, and the purple color was also good. The investigation results after 35 days were as follows.
草丈 １６．７３葉数 ３．２第１葉鞘高 ３．２０１１第２葉鞘高 ６．５１茎葉乾物重 ２１．８ｍｇ／本実施例３上記規格の水稲育苗箱に、粒状培土２ａｍの厚さ（窒素
、燐酸、加重それぞれ０．０６１ ｔ ／ １００ ｃ
ｉｉ含有）に詰め、播種床とした。催芽籾８０ ｇを播
種し、十分に潅水してから、実施例１における覆土用培
土１−で覆土した。Plant height 16.73 Number of leaves 3.2 First leaf sheath height 3.2011 Second leaf sheath height 6.51 Dry weight of stems and leaves 21.8 mg/Example 3 In a paddy rice seedling box of the above specification, a 2-am thick granular culture soil (nitrogen , phosphoric acid, weighted 0.061 t/100 c each
ii) and used as a seeding bed. 80 g of sprouting rice was sown, sufficiently watered, and then covered with soil for covering soil 1- in Example 1.
３２℃に設定した発芽器中に、三日装置いて出芽させ、
４５日間育苗して生育状態を調査した。Place the seeds in a germinator set at 32°C for three days to germinate.
Seedlings were raised for 45 days and their growth status was investigated.
発芽障害や生育の不揃いは見られず、紫色の退色も最後
まで見られなかった。４５日後の調査結果は、次の通り
であった。No problems with germination or uneven growth were observed, and no fading of the purple color was observed until the end. The investigation results after 45 days were as follows.
草丈 １７．９ａｍ葉数 ４．６第１葉鞘高 ２．７ｃｘｍ第２葉鞘高 ６．１個茎葉乾物重 ３５．７■／本実施例４塩基置換容量５６ｍ＋３／１００（ｌの混合土壌を粉砕
し、４０メツシユ以下に篩分けし、ＣＯＵ 、硫安、重
焼燐、及び塩化加重を、ＣＤｕ窒素０．２％、アンモニ
ア窒素０．２Ｎ、燐酸、及び加工各々０．３％となるよ
うに混合し、ＰＨ５に調整した。更に低重合ポリビニル
アルコールを、濃度３％水溶液として被覆用培土全量に
対して０．５％となるように添加した後、５〜３２メツ
シユに造粒し、滅菌、加熱乾燥して覆土用培土を得た。Plant height 17.9 am Number of leaves 4.6 First leaf sheath height 2.7 cxm Second leaf sheath height 6.1 stem and leaf dry weight 35.7 ■ / This Example 4 Base replacement capacity 56 m + 3/100 (pulverized mixed soil of 1) , sieved to 40 mesh or less, and mixed COU, ammonium sulfate, heavy sintered phosphorus, and chloride weight to 0.2% CDu nitrogen, 0.2N ammonia nitrogen, phosphoric acid, and 0.3% each. , the pH was adjusted to 5.Furthermore, low polymerized polyvinyl alcohol was added as a 3% aqueous solution at a concentration of 0.5% to the total amount of the coating soil, and then granulated into 5 to 32 meshes, sterilized, and dried by heating. to obtain soil for covering soil.
上記規格の水稲育苗箱に、粒状培±２．２５ｋｇを詰め
、催芽籾８０ｇを播種し、十分に潅水してから、上記覆
土用培土１瞳で覆土した。A paddy rice seedling box of the above specification was filled with ±2.25 kg of granular culture medium, 80 g of germinated paddy was sown, thoroughly watered, and then covered with 1 pu of the above-mentioned soil-covering soil.
３２℃に設定した発芽器中に、三日装置いて出芽させ、
４５日間育苗して生育状態を調査した。Place the seeds in a germinator set at 32°C for three days to germinate.
Seedlings were raised for 45 days and their growth status was investigated.
発芽障害や生育の不揃いは見られず、葉色も最後まで良
好であった。４５日後の調査結果は、次の通りであった
。No problems with germination or uneven growth were observed, and the leaf color remained good until the end. The investigation results after 45 days were as follows.
草丈 １８゜２３葉数 ４．６第１葉鞘高 ２．９３第２葉鞘高 ８．４ｃｍ茎葉乾物重 ３６．５■／本発明の効果本発明は、上記のごとく把料成分を全く添加しないか、
肥料成分の少ない播種床と、高濃度に肥料成分を含有す
る覆土用土壌を組合わせた水稲中面及び成苗の育生方法
であり、播種床に肥料を含まないが又は少量しか含まな
いので、根部の接触する部分に高濃度塩類溶液を生じる
ことなく、肥料成分による障害を回避することができる
。また、肥１ｆｆｌ持力の低い非土壌系資材を、播種床
として有効に利用することが可能になる。また、覆土用
土壌には、中面及び成苗に成長するのに必要な肥料成分
の全量または大半を含有するから、追肥の労力を省いて
、育苗箱における生育期間を延長することが可能になり
、更に必要量以上の肥料の消費が回避される。Plant height: 18°23 Number of leaves: 4.6 First leaf sheath height: 2.93 Second leaf sheath height: 8.4 cm Dry weight of stems and leaves 36.5 cm ,
This is a method for growing rice seedlings and seedlings that combines a seeding bed with a low fertilizer content and a covering soil containing a high concentration of fertilizer.The seeding bed does not contain fertilizer or only contains a small amount of fertilizer. It is possible to avoid damage caused by fertilizer components without creating a highly concentrated salt solution in the areas that come into contact with the roots. In addition, it becomes possible to effectively utilize non-soil materials that have a low fertilizer holding capacity as a seed bed. In addition, the soil for covering soil contains all or most of the fertilizer components necessary for the growth of medium and adult seedlings, so it is possible to save the labor of topdressing and extend the growing period in the seedling box. This also avoids consuming more fertilizer than is necessary.
特許出願人 呉羽化学工業株式会社代理人 弁理士 液部 剛Patent applicant: Kureha Chemical Industry Co., Ltd.Agent: Patent Attorney Tsuyoshi Liquidbe
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63044630AJP2622710B2 (en) | 1988-02-29 | 1988-02-29 | Rearing method of mature rice seedlings |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63044630AJP2622710B2 (en) | 1988-02-29 | 1988-02-29 | Rearing method of mature rice seedlings |
| Publication Number | Publication Date |
|---|---|
| JPH01218517Atrue JPH01218517A (en) | 1989-08-31 |
| JP2622710B2 JP2622710B2 (en) | 1997-06-18 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63044630AExpired - LifetimeJP2622710B2 (en) | 1988-02-29 | 1988-02-29 | Rearing method of mature rice seedlings |
| Country | Link |
|---|---|
| JP (1) | JP2622710B2 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104285573A (en)* | 2014-08-18 | 2015-01-21 | 何文 | Crop phosphate fertilizer application technology for improving phosphate fertilizer utilization rate |
| JP2019080542A (en)* | 2017-10-31 | 2019-05-30 | 井関農機株式会社 | Method of producing mat seedlings |
| CN112205253A (en)* | 2020-09-25 | 2021-01-12 | 宁波市农业科学研究院 | Yield increasing method for ratoon rice with large seedling throwing and filling up defects |
| WO2021114655A1 (en)* | 2019-12-10 | 2021-06-17 | 湘西盛世御品农业发展有限公司 | Method for high-yield planting and cultivating of kesha tribute rice |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104285573A (en)* | 2014-08-18 | 2015-01-21 | 何文 | Crop phosphate fertilizer application technology for improving phosphate fertilizer utilization rate |
| JP2019080542A (en)* | 2017-10-31 | 2019-05-30 | 井関農機株式会社 | Method of producing mat seedlings |
| WO2021114655A1 (en)* | 2019-12-10 | 2021-06-17 | 湘西盛世御品农业发展有限公司 | Method for high-yield planting and cultivating of kesha tribute rice |
| CN112205253A (en)* | 2020-09-25 | 2021-01-12 | 宁波市农业科学研究院 | Yield increasing method for ratoon rice with large seedling throwing and filling up defects |
| Publication number | Publication date |
|---|---|
| JP2622710B2 (en) | 1997-06-18 |
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