2. Spraying plant growth regulators on wheat leaves. Regulators have a significant role in promoting the recovery of wheat. In the early spring, early larvae should be crossed to increase the temperature of the soil, promote the return of young wheat seedlings, and increase the heading rate of tillers.
3. In the period of wheat returning green jointing, 10 kg of urea is applied per acre combined with pouring and water saving, and at the same time 400 g of potassium dihydrogen phosphate + 0.01% of Tianfengsu 10 ml 30 kg of leaf is sprayed for prevention and treatment. After wheat suffers from low-temperature freezing damage, the disease resistance is reduced, and pests and diseases are easily jeopardized. Insecticides should be sprayed in time to prevent pests and diseases.
4, to strengthen the management of fertilizer and water in the later period to prevent premature aging. Because of the more nutrients consumed by the plants in the frozen wheat fields, premature aging is prone to occur. On the basis of top dressing in the spring for the first time, look at the growth and development status of wheat seedlings, according to the needs of wheat seedlings, apply fertilizer to the foliage at the jointing stage or flag-raising stage, promote large panicles, increase grain weight, and strive to minimize the loss of freezing damage. Increase wheat production that year.
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