Absorption of phosphorus and zinc by crops is significantly affected by temperature and light. Low temperature in winter, lack of light, easy to induce winter crops lack of phosphorus, zinc, should be appropriate increase in phosphate fertilizer and zinc fertilizer. In addition, phosphorus can enhance the cold resistance of plants, and the application of phosphorus fertilizer will help prevent crops from freezing.
In addition, the temperature in winter is low, and ammonium bicarbonate belongs to ammonium nitrogen fertilizer, which can be directly absorbed and utilized by crops after being applied to the soil and has a rapid fertilizer effect. It belongs to a typical “quick-effect fertilizer†and can provide nitrogen nutrition to crops in time. The topdressing of ammonium bicarbonate in winter wheat field is 1-1.5 times more effective than that in high temperature season.
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