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一、浇越冬水的好处在小麦的冬前管理工作中,浇好越冬水是确保小麦安全越冬形成壮苗的重要措施,越冬水对小麦生长有以下好处。1.避免干冻。冬灌后土壤含水量增加,热容量和导热率相应变大,昼夜温度变幅会减少,近地表气温变幅缓和,从而可以减轻小麦干冻危害。2.储水蓄墒。冬灌后,水分会以结晶状态存在于土壤中,不会因重力等因素淋失掉,且溶于土壤溶液中的矿质营养也不会淋溶损失,
First, the benefits of pouring more winter water In winter wheat management work, pouring more winter water is to ensure the safety of winter wheat form an important measure of winter, winter wheat has the following benefits of growth. Avoid dry. After the winter irrigation, the soil water content increases, the heat capacity and thermal conductivity become larger correspondingly, and the diurnal temperature fluctuation will decrease, and the amplitude of the near-surface air temperature will be eased, which can reduce the damage of wheat freezing. 2. Water storage moisture. Winter irrigation, the water will exist in the crystalline state of the soil, will not be lost due to gravity and other factors leaching, and mineral solution dissolved in soil solution will not leaching loss,