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1树盘积雪的好处冬季,在果树的树盘内积雪,具有以下优点。防冻因雪的导热本领很差,土壤表面盖上一层雪被,可以减少土壤热量的外传,阻挡雪面上寒气的侵入,所以,受雪保护的果树根系可安全过冬。补养融化的雪水中,氮素含量比同体积的雨水高4倍,渗入土中可以提高土壤肥力,给果树补充所需营养。据测定,每1升雪水里,约含氮化物7.5克。雪水渗入土壤,就等于施了一次氮肥。
The benefits of 1 tree snow cover Winter, snow in the fruit tree tree tray, has the following advantages. Antifreeze Due to poor thermal conductivity of snow, the soil surface covered with a layer of snow, can reduce the heat of the soil, blocking the intrusion of chilly air on the snow surface, so the fruit trees protected by the snow can be safe winter. Nutrient water melts snow, nitrogen content than the same volume of rain 4 times higher, infiltration of soil can increase soil fertility, fruit trees to provide the necessary nutrition. It is determined that every 1 liter of snow water, about 7.5 grams of nitride. Snow into the soil, is equivalent to a nitrogen fertilizer.