Abstract: A paddy seed treatment agent containing a herbicidal active component and having a sufficient herbicidal effect, while having a reduced risk of herbicide injury to paddy rice, a method for treating paddy seeds using the paddy seed treatment agent, paddy seeds, and a method for controlling paddy field weeds by sowing and cultivating the paddy seeds, are provided. The paddy seed treatment agent contains fenquinotrione or a salt thereof as a herbicidal active component. The method for controlling paddy field weeds includes sowing and cultivating paddy seeds treated with this paddy seed treatment agent, and the like.

Abstract: A paddy seed treatment agent containing a herbicidal active component and having a sufficient herbicidal effect, while having a reduced risk of herbicide injury to paddy rice, a method for treating paddy seeds using the paddy seed treatment agent, paddy seeds, and a method for controlling paddy field weeds by sowing and cultivating the paddy seeds, are provided. The paddy seed treatment agent contains fenquinotrione or a salt thereof as a herbicidal active component. The method for controlling paddy field weeds includes sowing and cultivating paddy seeds treated with this paddy seed treatment agent, and the like.

Abstract: The present invention provides a granular agrochemical composition capable of reducing the risk of occurrence of chemical injury and capable of saving the labor, and a method for spraying the granular agrochemical composition. The granular agrochemical composition containing an agrochemical active component is used being mixed with rice seeds and sprayed upon sowing, and the composition having a short diameter of 50 to 320% of the width of the rice seeds, a long diameter of 50 to 230% of the length of the rice seeds, and a specific gravity of 1 to 4 g/cm3. The method and the like for spraying the granular agrochemical composition, including: a mixing step of mixing the granular agrochemical composition with rice seeds; and a spraying step of spraying the mixture obtained in the mixing step.