To designate that the manner which produces the agricultural chemical granular wattable powder constituent where decay detachability at underwater improves efficiently is offered as purpose, process below (a) - (e) (A) The agricultural chemical active ingredient, the process which the surface active agent and the water kneading is adjusted (B) The process where aperture pushes out the kneaded object from the screen of 600 - 2,000 millimicrons and corning does (C) The process which dries corning ones (D) It lays out the bread roll 2 it can provide irregularity on the roll surface parallel and turns, The process fragmentation by passing through corning ones which are dried between the said bread roll (E) The process which screens fragmentation onesProduction manner of the agricultural chemical granular wattable powder constituent which to the range of 50 - 1,000 millimicrons has the granularity which features that it includes is offered.水中での崩壊分散性が向上された農薬粒状水和剤組成物を効率良く製造する方法を提供することを目的とし、 以下の工程(a)~(e)(a)農薬活性成分、界面活性剤および水を練合する工程(b)練合物を孔径が600~2,000μmのスクリーンより押出し造粒する工程(c)造粒物を乾燥する工程(d)ロール表面に凹凸が設けられた2本の歯付ロールを平行に配置し回転させ、該歯付ロールの間に乾燥した造粒物を通すことによって破砕する工程(e)破砕物を篩分する工程を含むことを特徴とする粒度が50~1,000μmの範囲にある農薬粒状水和剤組成物の製造方法を提供する。
