目前,在我省个别地方出售变质失效农药,坑害农民,引起群众强烈不满。现介绍几种简易鉴别农药变质失效的方法。1.粉剂农药。这类农药如贮存年限过长或保管不当,常因吸收水分引起氧化,致使农药有效成分逐渐分解,变质失效。如发现粉剂农药明显结块,或用手握能成团状的,说明已经降效或即将失效。 At present, the sale of spoilage pesticides in some places in our province and the trapping of peasants have aroused strong dissatisfaction among the masses. Now introduce several simple methods to identify ineffective deterioration of pesticides. Powder pesticide Such pesticides as long storage life or improper storage, often due to absorption of water caused by oxidation, resulting in the gradual decomposition of pesticide active ingredients, deterioration of the failure. Pesticide powder was found to be significantly agglomerated, or can be clutched with a hand, indicating that has been reduced or imminent failure.