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叙述农作物病害的发生与必需营养元素的关系 ,试验表明只有在平衡作物营养元素的基础上使用农药治病 ,才能标本兼治 ,收到事半功倍的效果。同时叙述了补充农作物中微量元素的方式以及药肥合一的使用领域、用法与用量。
Describe the relationship between the occurrence of crop diseases and essential nutrients. Experiments show that only using the pesticides on the basis of balanced crop nutrient elements can we treat both the symptoms and symptoms and achieve a multiplier effect. At the same time, the ways of supplementing the trace elements in crops and the fields, usage and dosage of the combined application of medicine and fertilizer are also described.