Reasonable application of farmyard manure, rational application of farmyard manure, returning crop residues, and application of organic manure, can increase soil organic matter content and increase soil fertility, thereby increasing field capacity and improving soil drought resistance. After the organic fertilizer is applied to the soil, it is decomposed by various microorganisms and can stably release a full range of nutrients that the crop can directly absorb and use. Some organic matter turns into humus in the soil and can regulate soil nutrients. Substances and soil particles cement together to form agglomerate structure, so that the stability of the soil structure is good, and the water storage function of the soil is increased.
The scientific application of phosphate phosphorus can improve and regulate the metabolism of plants to adapt to various adverse environmental conditions. At low temperatures, enough phosphorus can increase the concentration of soluble sugars in the plant and increase the cold resistance of the crop. In addition, the presence of inorganic phosphorus can increase the buffering properties of the cell fluid, so that the pH of the cell protoplasm maintains a stable state, which is conducive to the normal life activities of the cells.
Reasonable supplement of potash potassium is beneficial to the crop to reduce the respiration, maintain the stability of the plasma membrane of the plasma and the antioxidant capacity of the plasma membrane, reduce the damage of the cell membrane at low temperature, and thus enhance the cold resistance of the plant. In addition, potassium can also promote root growth, increase root-shoot ratio, and thus enhance crop water absorption.
Timely foliage nourishment Under severe drought conditions, it is difficult for plants to absorb nutrients. At this time, the nutrients can be supplemented by foliar spraying. For example, urea+potassium dihydrogen phosphate can be used, and its concentration should be considered according to drought conditions and crop types. If the drought lasts longer, it should be sprayed with 0.1%-0.5% potassium dihydrogen phosphate every 5-7 days. The effect of spraying humic acid foliar fertilizer is also very significant, because phosphorus can increase the degree of hydration of the cell structure and increase the content of bound water in the colloid, reduce the loss of cell moisture, and increase the viscosity and elasticity of the protoplasm, thereby increasing the The resistance of the protoplasm to local dehydration.
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