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用叶绿康球肥在苹果、梨、桃和李树上进行大田对比试验 ,通过田间调查和室内分析 ,研究了球肥对果树叶片的复绿效果、对叶内矿质营养元素及叶绿素含量的影响以及对果树的增产效果和改善苹果品质的作用等。研究结果表明 :施用叶绿康球肥可使失绿果树叶片的活性铁提高 8.7%～ 2 0 .2 % ,苹果叶片的叶绿素含量提高 1 8% ;果树失绿程度降低 2～ 3级 ,果实单产提高 56%～ 89%。可降低叶片中 P、K、Zn、Mn、Cu的含量 ,使铁与这些营养元素的拮抗作用减弱 ,并能改善苹果品质 ,是一种有广阔前景的矫治果树缺铁失绿技术 ,适于大面积推广应用。
YeLvKang fertilizers in apple, pear, peach and plum on the field comparative test, field investigation and laboratory analysis of the effect of ball fertilizer on the fruit of the tree complex green, the leaves of mineral nutrients and chlorophyll content Effects and the effect of increasing the yield of fruit trees and improving the quality of apples. The results showed that the application of Yehhikang ball could increase the active iron content of leaves of green leaves by 8.7% ~ 2.02%, increase the chlorophyll content of leaves by 18%, reduce the loss of green leaves by 2 ~ 3, Yield increased 56% to 89%. Can reduce the content of P, K, Zn, Mn and Cu in leaves, weaken the antagonism between iron and these nutrients, and improve the quality of apple. It is a promising technology for correcting iron deficiency and loss of green in fruit trees A large area to promote the application.