1. Soil testing and formulating Fertilization Based on soil testing and fertilizer field tests, rational fertilization will be based on the laws of crop manure requirements, soil nutrient performance and fertilizer effects.
Second, increase the organic fertilizer, farmyard fertilizer, improve soil fertility capacity Farmyard fertilizer can only be applied after sufficient decomposing. The application of organic fertilizer can improve soil structure and soil cushioning, reduce fertilizer use, and reduce salt damage.
Third, the choice of the appropriate chemical fertilizer is best to use less chemical fertilizer, do not over-application of ammonium nitrogen fertilizer and ammonium nitrate fertilizer, promote the use of low-nitrogen high-concentration compound fertilizer.
Fourth, thin fertilizers and diligent facilities, control the amount of fertilizer used in quantitative fertilizer should not be too much, top dressing should be applied less frequently, to avoid one-time use of excessive fertilizer damage, as well as causing the accumulation of salt in soil poisoning.
5. Advocate the deep application of chemical fertilizers or deep application of the soil in the trenches to protect the soil, reduce volatile losses, and reduce direct injury. Acupoints need to be more than 10 cm from the roots of the crop. At the same time, pay attention to fertilization to properly water, keep the soil moist, reduce the solution and avoid high concentrations of fertilization.
Six, the rotation of different vegetables to absorb the nutrition is different, the depth of the root distribution is different, therefore, the rotation of vegetables with different characteristics of fertilizer requirements, you can make full use of the various nutrients in the soil.
Seven, watering dilution occurs when the fertilizer damage, timely watering dilution to solve the fertilizer damage, but also according to the situation of spraying protective agent or foliage foliar fertilizer.
8. When loosing soil and ventilating the shed, it is necessary to loosen the soil in time to release the harmful gas as quickly as possible. At the same time, we must strengthen ventilation and reduce the concentration of harmful gases.
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