About WATANABE HIROAKI
About 日本植物調節剤研究協
About paddy rice
About cultivation management
About weed control
About weed
About habitat distribution
About habitat
About pesticide application
About pesticide resistance
About cropping system
About cereal
About Rice cropping
About Plant damage caused by weeds
About Pesticides to weeds
About 水田
About 雑草
About 薬剤
About 作用機構