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长期以来,小麦冬灌被认为是北方冬麦区防止小麦冻害,春旱冬防、冬灌春用、调节春季棉麦争水、增产增收的重要措施。近几年在南宫市基点试验表明,正常年份,在小麦浇足底墒水,施足底肥的条件下,冬灌的防冻储水,增产增收作用不大。一,从防冻作用看,前些年由于肥料
For a long time, wheat winter irrigation is considered as an important measure to prevent winter wheat from freezing injury, winter drought and winter irrigation and winter irrigation in the northern winter wheat area, and to regulate the competition of cotton and wheat in spring and increase production and income. In recent years, Nangong City, the base point test showed that in normal years, wheat pouring at the end of the soil moisture, Shi enough under the conditions of fertilizer, winter irrigation antifreeze water storage, increase production is not big. First, from the role of antifreeze, a few years ago due to fertilizer