化学农药广泛的运用在农业生产之中。它有调控农业生产的虫害，调节动植物生长等作用。并于1761年首次运用于农业生产。
·2,447,543篇论文数据，部分数据来源于NoteExpress
我喜欢有机农场不使用化学农药或任何会污染土壤或水的东西。
I like the fact that organic farms don't use chemical pesticides or anything that can pollute the soil or the water.
这相当于每人每年约平均使用16磅的化学农药。
The average application equates to about 16 pounds of chemical pesticides per person every year.
而且没有农业径流和用来对付瓢虫等天敌的化学农药。
There was no agricultural run-off, and chemical pesticides were replaced with natural predators such as ladybirds.
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