增施钾肥对苹果品质和产量的影响  

Effect of Application of Potassium Fertilizer on Production and Fruit Qual ity of Apple Trees

作　　者：王勤[1] 何为华[1] 郭景南[1] 黄显淦[1] 焦锁民 何艳华 

机构地区：[1]中国农业科学院郑州果树研究所,河南郑州450009 [2]河南省陕县良种场,河南陕县472143

出　　处：《果树学报》2002年第6期424-426,共3页Journal of Fruit Science

基　　金：PPC/PPIC资助。

摘　　要：三年田间定位试验结果证明,对豫西地区富士苹果树增施氯化钾,可使树体营养状况有明显提高,果实品质得以明显改善,且产量增幅可达6.1%～19.0%。施钾时期以当年果实膨大期(6～8月)追施为好。N、P2O5、K2O以1∶1∶1或1∶1∶1.5的施用比例且每666.7m2施39.8～59.8kg氯化钾的综合效果和效益最好。Results of over3year applying fertilizers on Fuji apple trees in the western part of Henan province showed that ap-plication of potassium chloride could obviously increase the nutrition level of the trees and improve the fruit quality;the pro-duction could be increased by6.1%～19.0%.The suitable period for applying potassium fertilizer was in the period of fruit en-largement.It also showed that application of it as supplemental fertilization was better than used as base fertilizer.The opti-mum ratio of N,P 2 O 5 ,K 2 O was1∶1∶1or1∶1∶1.5and the appropriate amount of application of potassium chloride was39.8～59.8kg /666.7m 2 .

关 键 词：钾肥 苹果 品质 产量 

分 类 号：S661.1[农业科学—果树学]