PROBLEM TO BE SOLVED: To provide a powdery composition which comprises a coated agrochemical prepared by coating a powdery agrochemical with a thermosetting resin and has excellent fluidity as granules.SOLUTION: The powdery composition comprises (a) a coated agrochemical which is prepared by coating a powdery agrochemical with a thermosetting resin and has a volume median particle diameter of 10-200 &mum and (b) a metal oxide fine powder which has an apparent specific gravity of &le0.6 g/m and is selected from the group consisting of aluminum, titanium, zinc and zirconium in the weight ratio of (a)/(b) of 100:0.1-100:30. Preferably the thermosetting resin is a urethane resin and/or a urea resin and the apparent specific gravity of the oxide fine powder is 0.01-0.3 g/ml.COPYRIGHT: (C)2008,JPO&INPIT【課題】粉状農薬が熱硬化性樹脂で被覆されてなる被覆農薬を含む、粉粒体としての流動性が良好である粉状組成物を提供すること。【解決手段】(a)粉状農薬が熱硬化性樹脂で被覆され、体積中位径が10~200μmである被覆農薬、並びに(b)見掛け比重が0.6g/ml以下であり、アルミニウム、チタン、亜鉛及びジルコニウムからなる群から選ばれる金属の酸化物微粉から実質的になる粉状組成物であり、(a)と(b)との重量比が100:0.1~100:30である粉状組成物であって、好ましくは熱硬化性樹脂がウレタン樹脂及び/又は尿素樹脂であり、該酸化物微粉の見掛け比重が0.01~0.3g/mlである粉状組成物。【選択図】なし