苹果梨树营养状况的初步研究  

Analysis on the Nutrition Contents in Pyrus pyrifolia cv.pingguoli Trees in Yanbian Area

作　　者：曲柏宏[1] 朴红权[1] 朴一龙[1] 陈艳秋[1] 尹锡风 

机构地区：[1]延边农学院果林系,吉林龙井133400

出　　处：《园艺学报》1996年第4期334-338,共5页Acta Horticulturae Sinica

摘　　要：对‘苹果梨’幼树、盛果期树及老树叶片营养元素含量迸行了测定，在年周期内各 树龄树叶片营养元素含量呈现基本一致的规律性变他7月下旬至8月上旬可作为苹果梨叶分 析的适宜采叶时期。通过对26个供试苹果梨园的叶分析，明确了叶片各营养元素间存在极其 复杂的相互作用，叶片各元素含量的变异系数差异较大，且微量元素含量的变异系数多显著高 于大量元素。初步明确延边地区苹果梨树普遍缺乏钾、氮、锌，需肥顺序是钾＞氮＞锌＞铁 ＞钙。Examination done to the leaf Of plflgglloll( PyllllS pJ,rifo cV. plllgg1Oll)trees In the young, rlpPen and old stages showed that the nutrition elements In the bayesat dlfferentstages In anual variation tends to change regularly. Thebest time to take balsamples Is from the later July to the beglnnl吗 ofAugust. TIroh the analysis to th26leafsamples for test, It proved that there was a certain omplicated In陀ractlon amo thleafnutrltlon elements and the variation Index ofelement content In the leaves Is clearly dlfferent from each other. The Index of the mln--element content is much higher than that ofma-c--element. A prellmlnarytheory putforwardls thatthe pingguolltrees nyanblan Islack ofK, N, Zn In common, and the sequence ofappllcatlon fCrtlllzer Is K>N>Zn>Fe>Ca

关 键 词：苹果梨 营养元素 叶分析 幼树 

分 类 号：S661.201[农业科学—果树学]