怎样用好“新型”化学农药———除草剂除草剂是一类专门用来杀杂草的化学药剂，虽说他问世已久，但对广大农民朋友来讲，还是一类新型农药，即使部分农民对其性质略知一二，但多数还是比较陌生的。由于各种除草剂的杀草本领不一样，对农作物的影响有很大差异，所以要想用... How to make good use of “new” chemical pesticides --- Herbicide Herbicide is a kind of chemical agent that is specially used to kill weeds. Although he has been around for a long time, it is still a new type of pesticide to most peasant friends. Even if some Farmers know one or two things about their nature, but most are still unfamiliar. Due to various herbicidal herbicides are not the same, the impact on crops are very different, so want to use ...