Wheat is subjected to freezing damage during the winter, and if it is suitable, it can be applied to fertilizers during warm winters. After returning to green, the water and fertilizer should be changed to fertilize the water to compensate for the loss of freezing in winter. If the wheat field that has been jointed before winter suffers from freezing damage, it should be repressed from 12 noon to 2 pm on sunny days, and the main stem and tiller of the jointed joints should be crushed to promote the growth of small tillers, and combined with topdressing for cultivating to promote Wheat is safe and robust. The specific operation is as follows: timely application of nitrogen fertilizer to promote the rapid growth of small tillers. The main stem and the wheat field that has been frozen in the big tiller are harvested twice to restore the fertilizer. For the first time, after the thawing in the field, the quick-acting nitrogen fertilizer was applied, and 10 kg of urea was applied per acre, and the field was applied to open the ditch to improve the fertilizer efficiency, and the wheat field was added with water. Phosphorus has the function of promoting tillering and root growth, and the phosphorus-deficient wheat field can be mixed with urea and diammonium phosphate. For the second time, in the jointing stage of wheat, combined with watering and water saving, 10 kg of urea per acre was applied. General frozen wheat fields (only frozen leaves, no dead cockroaches) should be drawn early in the early spring to increase the ground temperature, promote the return of wheat seedlings, and in the rising period of topdressing and watering, improve the tillering rate.
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