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一怕早春冻小麦进入返青期后,生育特点明显改变,已由感温阶段进入感光阶段,麦苗的抗寒性显著降低,一旦遇到春寒,植株极易遭受冻害。防止措施:①划锄。在土壤返浆时进行顶凌划锄,可以松土、保墒、增温、除草,增强麦苗的御寒能力。不论弱苗、旺苗还是壮苗,都要在返青期间抓紧划锄;对于有旺长趋势的麦田,还可以适当深锄,以抑制春
Fear of early spring frozen wheat into the greening period, the characteristics of fertility has changed significantly from the temperature sensing stage into the light-sensitive stage, significantly reduce the cold resistance of wheat seedlings in the event of cold, the plant vulnerable to frost damage. Preventive measures: ① plan hoe. In the soil back to the top of the padding Ling hoe, you can loosen soil, moisture, warming, weeding, enhance the ability of wheat seedlings warm. Regardless of weak seedlings, Wang Miao or strong seedlings, should pay close attention to hoeing during the rejuvenation; for wheat fields with a long trend, you can also appropriate deep hoe to curb the spring