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一、正确购置农药在购置农药前,首先要弄清防治对象和兼治对象,以对症下药。购买农药时要注意以下几点,以免购买假药,造成损失。一是所购农药必须有四证:农药登记证,生产许可证,农药标准号,产品合格证。二是注意农药使用有效期,一般水剂农药有效期为1年,粉剂2年,乳油3年,可具体看一下商标上的生产日期和有效期。三是要看一下农药,包装应完整无破损无遗漏,粉剂农药无结块,乳剂农药无分层,水剂农药无沉淀,颗粒农药符合标准,颗粒大小匀称。四是最好选择有兼治性(多效性)的农药,达到一药多治效果。
First, the correct purchase of pesticides Before the purchase of pesticides, we must first understand the prevention and treatment of both treating the object, to prescribe the right medicine. When buying pesticides should pay attention to the following points, so as not to buy counterfeit drugs, resulting in loss. First, the purchase of pesticides must have four cards: pesticide registration certificate, production license, pesticide standards, product certification. Second, pay attention to the validity of pesticide use, the general agent of pesticides is valid for 1 year, 2-year powder, cream 3 years, can be specific look at the trademark production date and expiration date. The third is to look at pesticides, packaging should be intact without omission, powder pesticides without caking, emulsion pesticides without stratification, no precipitation pesticides, granular pesticides meet the standards, the particle size is well-proportioned. Fourth, it is best to choose adjuvant (pleiotropic) pesticides to achieve a multi-treatment effect.