玉米是穴播稀植作物。播种前搞好药剂拌种,是防治地下害虫,确保玉米苗全的一项重要措施。玉米药剂拌种时要注意以下几点: 1、选择合适的农药。防治地下害虫,一般应选用残效期长,具有胃毒和内渗作用,并对玉米种籽无药害的农药。此外还应查地下害虫的主要种类和数量,以便对症下药。 2、注意用药量。常用的农药药量是:50％甲基1605乳油1公斤对水50公斤,拌玉米种400公斤;20％的甲基异柳磷乳油1公斤对水 Corn is a sowing planted crops. Sowing a good dose of seed dressing before, is to control underground pests, to ensure that corn seedlings an important measure. Corn seed dressing should pay attention to the following points: 1, choose the right pesticide. Prevention and control of underground pests, the general should be selected residual long period, with stomach poisoning and internal osmosis, and no pesticides on corn seed. In addition, the main types and quantities of underground pests should also be checked in order to remedy the problem. 2, pay attention to dosage. Commonly used pesticide doses are: 50% methyl 1605 EC 1 kg 50 kg of water, mix corn 400 kg; 20% of methyl isoflurane EC 1 kg of water