除草剂能及时、有效地杀灭田间杂草,具有省工、高效等优点。但是,如使用不当,就会产生药害,轻则伤苗,抑制生长:重则死苗,颗粒无收。使用除草剂,应注意以下五点。 1.准确选用药剂 根据田间杂草的种类和数量,对症下药。目前,水稻移栽田常用的除草剂种类有:5％的丁草胺乳油、18％的克草威可湿性粉剂、14％的稻草畏可湿性粉剂、15％的乐草隆可湿性粉剂、96％的禾大壮乳油等几种,其中丁草胺、克草威、稻草畏杀草谱广、能有效 Herbicide can timely and effectively kill field weeds, with the advantages of labor-saving and high efficiency. However, if used improperly, it will produce phytotoxicity, light injury wounds, inhibition of growth: heavy dead seedlings, crop failure. The use of herbicides, should pay attention to the following five points. 1. Accurate selection of pesticides According to the type and quantity of weeds in the field, the right medicine. At present, the commonly used herbicide in transplanting rice fields are as follows: 5% butachlor EC, 18% Kewui WP, 14% WPW WP, 15% 96% Wo Dazhuang EC such as several, including butachlor, Ke Cao Wei, straw grass broad spectrum to kill, can be effective