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施田农药的目的 ,不仅为了防治病、虫、草害 ,更重要的是保证农作物的丰收。农药对被保护作物的影响有两个方面 :刺激植物生长发育或者影响生理、代谢 ;抑制或破坏植物的正常生长发育规律 ,造成不同程度的药害。今特探讨作物药害及其预防问题。1 药害的症状类型药害是指作物施
The purpose of Shi Tian pesticides, not only to prevent disease, insects, grass damage, more importantly, to ensure the harvest of crops. Pesticides on the protected crops in two aspects: to stimulate plant growth and development or affect the physiology, metabolism; inhibit or destroy the normal growth and development of plants, resulting in varying degrees of injury. This special discussion on crop injury and its prevention. 1 types of symptoms of injury phytotoxicity refers to crop facilities