Institute of Plant Protection Chinese Academy of Agricultural Sciences Beijing 100193 P.R.China;
Henan Provincial Engineering and Technology Research Center for Controlled Pesticide and Fertilizer Release Henan Haonianjing Biological Development Co. Zhengzhou 450040 P.R.China;
Henan Provincial Engineering and Technology Research Center for Controlled Pesticide and Fertilizer Release Henan Haonianjing Biological Development Co. Zhengzhou 450040 P.R.China;
Institute of Plant Protection Chinese Academy of Agricultural Sciences Beijing 100193 P.R.China;
Institute of Plant Protection Chinese Academy of Agricultural Sciences Beijing 100193 P.R.China;
Institute of Plant Protection Chinese Academy of Agricultural Sciences Beijing 100193 P.R.China;
controlled-release granule; imidacloprid; dose distribution; control effect; wheat;