How to reduce pesticide residues
Minimize the use of pesticides. The selection of pest-resistant varieties is the most economical, safe, and effective method for controlling pests and diseases; before sowing, deep-turning into cultivated land in the summer or late in the winter can kill some germs and eggs, with the application of fully decomposed organic fertilizers, and strengthen after sowing. Field management, creating environmental conditions suitable for crop growth but not conducive to the occurrence of pests and diseases, can effectively reduce the occurrence of pests. Specifies the scope of use of pesticides. According to the chemical nature and toxicity of pesticides, pesticides that are highly toxic, highly toxic, have large accumulation, and have a long residual effect period are prohibited from use in some crops. Among them, aldicarb, phorate, and carbofuran can only be used for seed treatment or soil treatment of cottonseed, wheat, corn, and sugarbeet, and other crops should not be sprayed. Phoxim used to control fruit tree pests must be used 30 days before fruit harvest. Strictly control the pesticide application concentration, application amount, dosage form, frequency, and application methods. In the pesticide formulation, the residual amount of emulsifiable concentrate is larger, the powdered milk and the wettable powder are the next, and the aqueous solution is lower. In the application methods, seed treatment, soil treatment, and trunk dressing method were higher than spraying and dusting. Special attention should be paid to the application of pesticides that are close to the harvest time of the crops. We must choose agents with low toxicity and rapid decomposition, strictly control the dosage, application concentration, application methods, number of applications, and time of banned. Strictly observe the last application time before harvest. According to the safety interval of various pesticides. According to the principle of early treatment, the use of pesticides in the growing period of crops, early stages of pests, and initial infestation of pathogens can greatly reduce pesticide residues. Multi Span Plastic Film Greenhouse Arch greenhouse is a kind of economical greenhouse, which is welcomed by the users with graceful curve form and low cost. It has beautiful appearance, fluent visual, reasonable structure and good performance for keep temperature. It is economical greenhouse because of its relatively low manufacturing cost. It can be applied in most areas of China. Double membrane greenhouse is used more in north of China, while single film greenhouse is used more in southern region. It can get maximum sunlight when visible light is within the scope of 0.4 to 0.7 microns and form a thick envelope, which can effectively prevent heat loss and prevent the invasion of cold air. Adopting a double membrane can greatly improve heat preservation performance of the greenhouse and save operating cost. The top cover material is polyethylene lifelong anti-fog and anti-dipping film po-covering. The outer of it has the function of UV protection and the inner has the function of preventing from the sets of dew. According to the needs of customers, the sides of the greenhouse can be covered with polyethylene lifelong anti-fog and anti-dripping po-covering or polycarbonate hollow plate. Multi Span Plastic Film Greenhouse,Pc Board Greenhouse,Pc Sheet Covering Greenhouse,Greenhouse Pc Board JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , https://www.thgreenhouse.com