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Adrag harrow, a type ofspring-tooth harrow, is a largely outdated type ofsoilcultivationimplement that is used to smooth the ground as well as loosen it after it has beenplowed andpacked. It uses many flexibleiron teeth usually arranged into three rows. It has nohydraulic functionality and has to be raised/adjusted with one or multiple manual levers. It is a largely outdated piece offarm equipment, having been replaced by more moderndisc harrows and hydraulically operatedfield cultivators.
A drag harrow is used to loosen and even out soil after it has beenplowed and packed. It pulls up large rocks which may then be picked up manually and put in the tractor'sstone box to remove from the field. The drag harrow also kills some weeds that may be present, but it is not very efficient in doing so due to its highly flexible teeth, hence it is not one of its primary functions.
The drag harrow is not often used in modern farming as other harrows have proven to be more suitable, such as thedisc harrow. Another reason they are not often used is because they cannot be controlled hydraulically, meaning that theoperator is required to dismount from thetractor to adjust it or unclog it. However it is used as a drag behind several other implements such as a rod weeder. Due to their low cost and simplicity, drag harrows are still used widely by small farmers.[1]