防御小麦冻害,确保小麦安全越冬,是小麦高产稳产的一项重要措施。防御小麦的冻害,除选用耐寒品种、适时播种外,须切实抓好以下一些综合措施: 1. 精细盖草。在越冬前及时精细覆盖稻草、水草和腐烂的渣草,不仅能保墒、增肥,还有压草、防寒等重要作用。 2.科学镇压。小麦3—4叶期打磙镇压,既能促根壮蘖,增加有效分蘖,又能碎土保墒,减少土壤孔隙,改善小麦御寒的环境。 Defense wheat frost damage, ensure the safety of wheat winter, wheat is an important measure of high and stable yield. Defensive wheat frost damage, in addition to the selection of cold-tolerant varieties, timely sowing, we must earnestly grasp the following integrated measures: 1. Fine cover grass. In the winter before the close coverage of straw, aquatic plants and decayed gravel, not only moisture, fertilizer, as well as pressure grass, cold and other important role. Scientific suppression. 3-4 leaves of wheat to suppress the crackdown, both to promote strong tillering, increase effective tillering, but also soil moisture, reduce soil porosity, improve the warm wheat environment.