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笔者下乡时,经常见到一些农民把两种或几种农药混配在一起喷施。问其原因,一是认为多种混配可起到兼治作用,减少施药次数;二是想提高防治效果,认为一种药把虫子或病打不下去,几种混起来可能会好些。其依据是有些农药使用说明中确有“可与多种其他农药混用”字样。笔者也曾多次看到,有的农民还把含有同一有效成份的复配制剂或不同商品名称的同一药剂混用。为什么会出现这种情况呢?纵观现在的农药,品种繁多,有多种多样不同有效成份的复配制
When I came to the countryside, I often saw some peasants mixed with two or more pesticides and sprayed together. Asked the reason, first, that a variety of mixing can play a role in both treating and reducing the number of pesticides; the second is to improve the control effect, that a medicine to the bugs or sick to fight, mixed up several may be better. It is based on the fact that some pesticide use instructions do have “mixed with many other pesticides”. The author also has repeatedly seen that some farmers also use the same active compound containing the same active ingredient or the same product with different drug names. Why this happens? Looking at the current pesticides, a wide variety, there are a wide range of different active ingredients of compounding