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药剂防治是生产上控制蔬菜病虫害的主要措施,可以大大降低治虫成本,减少对环境的污染。一、合理轮作轮作是预防、控制或减轻蔬菜某些病虫草害最为经济有效的措施,并有利于调节和改善土壤理化性状,协调利用土壤水分和养分。轮作周期一般为
The prevention and control of pesticides is the main measure for controlling pests and diseases of vegetables in production, which can greatly reduce the cost of pest control and reduce the pollution to the environment. First, rational rotation Crop rotation is the most economical and effective measure to prevent, control or reduce some pests and diseases of vegetables, and is conducive to regulating and improving soil physical and chemical properties, and coordinating the use of soil moisture and nutrients. The rotation cycle is generally