How to deal with excessive use of chemical fertilizers

1. It is necessary to strengthen and improve various technical measures in formula fertilization. In the process of formula fertilization, it is necessary to enrich and perfect fertilization parameters, such as nutrient absorption per unit yield, soil nutrient use efficiency, and chemical fertilizer utilization rate. These parameters are also changing along with the changes in production conditions, which are the basis for the original test soil and plant nutrient requirements. At the same time, new environmental conditions analysis items (such as water quality, soil hazardous material content, fertilizer and pesticide pollution, etc.) have been added to continuously enrich fertilization parameters and optimize formula fertilization.

2. To increase the proportion of organic fertilizer in formula fertilization. Organic manure has the characteristics of complete nutrients, long-term fertilizer efficiency and no pollution. High-efficiency organic manure can increase soil organic matter content, improve soil water storage and fertilizer retention capacity, improve soil physicochemical properties and aggregate structure, and improve the quality of agricultural products.

3. To increase the use of trace fertilizers and biological fertilizers. The micro-fertilizer can balance the nutrient needed for the crop, and the biological fertilizer can secrete physiologically active substances through the micro-organisms contained in the micro-fertilizer, which can play a role in nitrogen fixation, phosphorus release, potassium release, decomposition of other micronutrients in the soil, and increase of chemical fertilizers and organic fertilizers. The utilization rate improves soil physical and chemical properties so that soil can supply various nutrients to crops, promote crop growth, increase crop yield and product quality, and at the same time decompose harmful chemical substances in the soil and kill harmful bacteria and reduce fertilizers. Residues of pesticides and harmful bacteria.

4. To coordinate the relationship between a large number of elements and trace elements. In formula fertilization, people often attach importance to the use of large quantities of nitrogen, phosphorus, and potassium, while neglecting the application of trace element fertilizers. The addition of trace elements or spraying of trace element growth agents and composite biological growth agents can provide balanced supply of nutrients, promote rapid transformation of nutrients in crops, reduce the accumulation of harmful substances, and promote disease resistance, disease prevention, and increase production and increase of crops. A good way to quality

5. In the crop fertilization should be changed in the past the traditional way, change the blind fertilization to optimize formula fertilization.

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