摘要
钙素营养在果树体内有重要的生理作用,且有单向运输的特性。果树缺钙,果实极易发生生理病害。土壤交换性钙缺乏的临界值为400mg/kg土,不同树种的叶片、果实中钙含量的适宜值不同,缺钙的原因很多,但一般可通过土壤施钙、叶面喷钙及果实采后浸钙来矫正。
It is important of the physiological function of the calcium and one-way transportation for deciduous fruits.It will be calcium deficiency if there is insufficient calcium nutrition in the body of fruit trees.Different species have different critical content of calcium,and exchangeable calcium of soil is400mg /kg as its critical content.Calcium deficiency can be corrected by applying calcium fertilizer in soil,spraying calcium liquid on leaves and soaking calcium liquid of fruits although there are many causes of calcium deficiency.
出处
《北方果树》
2004年第2期4-5,共2页
Northern Fruits
