PROBLEM TO BE SOLVED: To provide a production method, upon granulation of a granular agrochemical preparation by a granulation machine mounted with an electric motor of 1.5 kW or more, satisfactory in a granulation speed.SOLUTION: Upon production of a granular agrochemical preparation using a granulation machine mounted with an electric motor of 1.5 kw or more, when a kneaded product being the one containing an agrochemical active component, a surfactant, a bulk filler and water and also prepared so as to satisfy the following conditions (1) and (2), the granulation speed is made satisfactory: the condition (1) where, using a mixer torque rheometer, the granulation index measured under the condition in which the circumferential speed of the main axis is 8.6 cm/s being 0.4 to 1.0 and the condition (2) where, using a mixer torque rheometer, the torque measured under the condition in which the circumferential speed of the main axis is 8.6 cm/s being 4N or lower.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】1.5kW以上の電動機が搭載された造粒機で粒状農薬製剤を造粒する際に、造粒速度の良好な製造方法を提供すること。【解決手段】1.5kw以上の電動機が搭載された造粒機を用いて粒状農薬製剤を製造する際、混練物が、農薬活性成分、界面活性剤、増量剤及び水を含み、かつ、以下の条件(1)及び(2)を満たすように調製された混練物であると、造粒速度が良好になる。条件(1):ミキサートルクレオメーターを用いて、その主軸の周速度が8.6cm/sの条件で測定される造粒指数が0.4~1.0条件(2):ミキサートルクレオメーターを用いて、その主軸の周速度が8.6cm/sの条件で測定されるトルクが4Nm以下【選択図】なし
