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Experts move for wheat freezing
This year, the sowing of wheat is relatively large, the sowing of spring varieties is early, the temperature is high, and the wheat is obviously prosperous. It is a great hidden danger to the freezing of wheat. For this reason, the experts have six measures for preventing freezing of wheat: Covering 300-400 kilograms of wheat bran, crushed wheat straw, or other plant wastes per acre between dry wheat fields in winter, covering both the alfalfa and the antifreeze, and after the cover is corroded, the soil can be improved and fertility can be cultivated. , antifreeze, and effective measures to increase production. 2. Covering manure spreads manure in a layer of manure after the wintering period of wheat enters, and the masses call it “warm ditch manureâ€, which can shelter winds, protect the earth, increase the temperature and prevent freezing, and supplement the nutrients for the young seedlings. The thickness of manure is preferably 3 to 4 cm. In the case of insufficient manure, late barley fields, shallow-sowing wheat fields, sandy wheat fields, and wheat fields sown with weak springs are given priority. 3. When the barley soil roots are about to stop growing before the winter, combined with paddy soil, the root can effectively prevent winter wheat from freezing. In severely frost-damaged years, the antifreeze effect of rammed soil is particularly obvious, and it can generally increase production by 5% to 10%. 4. Winter irrigated antifreeze light is not frozen and poured early, and the frozen light is not too late. That is, before the arrival of cold air, a winter irrigation is performed. 5. Fume and Frost Prevention Closely watch the weather change. Before the cold current arrives, pile up wheat stubble and straw and other smoke in the field in the evening. 6. Spraying chlormequat (Zhuangfeng amine, Maiyefeng, paclobutrazol) before freezing injury in winter wheat, spraying with 0.3% ~ 0.5% chlormechanin solution can inhibit plant growth and prevent or reduce the occurrence of frost damage.