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搞好冬前覆盖与清沟,是紫云英冬季保苗的关键措施。晚稻收割后的秋末冬初雨量渐多,气温渐低,并逐步出现冰、霜天气,对紫云英幼苗的生长不利,因此,冬前紫云英的覆盖与排灌工作十分必要。晚稻收割后,将1/3的稻草均匀撒在田面,覆盖紫云英幼苗,这样对紫云英幼苗生长有五条好处:一是使紫云英幼苗不受秋末阳光的曝晒;二是使紫云英幼苗不受冬季冰霜冻害;三是可以提高冬季土表温度,有利紫云英幼苗生长;四是冬季稻草逐渐腐烂,又是紫云英
Do a good job of winter before the cover and clear ditch, is the key step in winter seedlings of milk vetch. The late autumn and early winter after the harvest of late rice began to rain gradually, the temperature gradually decreased, and the gradual ice and frost weather, unfavorable to the growth of the milk vetch seedlings, therefore, the winter vetiver coverage and irrigation and drainage work is necessary. After harvesting of late rice, 1/3 of the straw is evenly sprinkled on the ground to cover the asparagus seedlings, which has five advantages for the growth of the asparagus seedlings. The first is that the asparagus seedlings are not exposed to the sunlight at the end of autumn; Yunying seedlings are not affected by frost damage in winter; third, winter soil surface temperature can be increased, which is beneficial to the growth of Aster seedlings; Fourth, the winter straw gradually decay, but also Asarum