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稻田农药深施,就是将具有内吸性能的农药施到根区,通过根部吸收传送到植株组织各个部分,害虫取食后就会中毒死亡。1978年,我们学习华南衣学院深层施药防治水稻害虫的经验,结合我县实际情况,分别在龚场、汪桥、红城三个公社和县测报站,对晚稻飞虱进行了农药深施的防治试验。通过试验我们初步认为,稻田深层施药,具有残效期长,不怕下雨冲刷,减少喷药次数,使用安全,操作简便,能与化肥混施,减少环境污染和保护害虫天敌等优点。现将试验方法和结果综述如后。
Deep application of pesticides in paddy fields means that the pesticides with internal absorption properties are applied to the root zone, and are transmitted to all parts of the plant tissues through absorption at the roots, causing the poisoning and death of the pests after eating. In 1978, we learned from the experience of deeply applying pesticides to prevent and control rice pests in South China Institute of the College. Combining with the actual situation in our county, we conducted three pesticide tests on late rice planthoppers in Gongchang, Wangqiao and Hongcheng, respectively. Shi prevention and control test. Through experiments we initially believe that the deep paddy field application has the advantages of long residual period, not afraid of rain erosion, reduce the number of spraying, safe, easy to operate, can mix with chemical fertilizers, reduce environmental pollution and protect pests and other natural enemies. The test methods and results are summarized below.