Spring fertilizer is applied to drought resistance
Reasonable application of farmyard fertilizer
Reasonable application of farmyard manure, returning cropland to straw and increasing organic manure can increase soil organic matter content and increase soil fertility, thereby increasing field capacity and improving soil drought resistance. Organic manure is able to stably release the complete range of nutrients that can be directly absorbed and used by crops through the decomposition of various microorganisms in the soil. Some organic matter turns into humus in the soil, which can regulate soil nutrients and bind minerals and soil particles. The formation of agglomerate structure, so that the stability of the soil structure performance is good, increasing the water storage capacity of the soil.
Scientific application of phosphate fertilizer
Phosphorus can improve and regulate plant metabolism and adapt it 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.
Appropriate potassium supplement
Potassium is sufficient to reduce the respiration, maintain the stability of the plasma membrane of the plasma and the antioxidant capacity of the plasma membrane, reduce the destruction of the cell membrane at low temperature, and thus enhance the cold resistance of plants. In addition, potassium can also promote root growth, increase root-shoot ratio, and thus enhance crop water absorption.
Timely foliage nourishing
In the case of severe drought, it is difficult for plants to absorb nutrients. At this time, foliar spraying can be used to supplement nutrients. For example, urea+potassium dihydrogen phosphate can be used, and its concentration should be considered according to drought conditions and crop types. If drought persists for a long time, it should be sprayed with 0.1% to 0.5% potassium dihydrogen phosphate every 5 to 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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