叶绿康球肥在果树上的应用研究

Study on application of Yelükang ball fertilizer in fruit production

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。

The field pairing experiments of Yelükang ball fertilizer were conducted in apple,pear,peach and plum trees.Through field survey and laboratory analysis,the efficiency of the ball fertilizer on greenless recovering of fruit tree leaves,on mineral elements and chlorophyll contents in leaves,as well as fruit yield and apple quality were studied.The obtained results show:After applying Yelükang ball fertilizer,the active iron in the chlorotic fruit tree leaves increased by 8.7%~20.2%,the chlorophyll content of apple tree increased by 18%;the chlorotic degree of fruit trees decreased 2~3 scales,the yield per tree increased by 56%~89%.Through applying ball fertilizer,P,K,Zn,Mn and Cu contents in the leaves decreased,the antagonism between iron and these elements became weaker,and apple quality could be improved.Its the good practical correcting technique for iron deficiency chlorosis of fruit trees and very suitable in extension in large scale.