叶绿康球肥对桃树矿质营养和产量的影响

Effect of Yelükang ball fertilizer on mineral nutrition and yield of peach trees

用叶绿康球肥在失绿桃树上进行大田对比试验 ,通过田间调查和叶片分析 ,研究了球肥对桃树叶片的复绿效果对叶内矿质营养元素的影响及增产效果。结果表明 :施用球肥可使桃树叶片失绿程度降低 2～ 3级 ,百叶重明显增加 ,单株产量提高 56%～ 89% ,全铁和活性铁含量提高 1 8.7%～ 1 9.5% ,可降低叶片中 N,P,K,Cu和 Zn的含量 。

The field pairing expriments of the Yelükang ball fertilizer were conducted in the chlorotic peach trees. Through field survey and leaves analysis, the efficiency of recovering green of the ball fertilizer to leaves, effect on mineral elements contents in leaves,and as well as the efficiency of increasing fruit yield were studied.The obtained results show: After applying Yelükang ball fertilizer, the active iron and total iron in the chlorotic peach tree leaves increased by 18.7%~19.5%, the chlorotic degree of peach trees decreased 2~3 scales, the fresh weight and dry weight of 100 leaves also increased apparently; the yield per tree increased by 56%~89%. Through applying the ball fertilizer, N, P, K, Zn and Cu contents in the leaves decreased, the antagonism between iron and these elements become weaker.