库尔勒香梨叶片营养元素含量的年变化规律及相关性研究  

Research on the Annual Variation Rules and Correlation of Leaf Nutrient Element Content in Korla Fragrant Pear

作　　者：位杰 马建江 陈久红 姜峰[2] WEI Jie;MA Jianjiang;CHEN Jiuhong;JIANG Feng(Agricultural Scientific Institute of 2nd Division of Xinjiang Production and Construction Corps,Tiemenguan 841005,China;The 33th Regimental Farm Agricultural Development Service Center of 2nd Division of Xinjiang Production and Construction Corps,Tiemenguan 841005,China)

机构地区：[1]新疆生产建设兵团第二师农业科学研究所,新疆铁门关841005 [2]新疆生产建设兵团第二师33团农业发展服务中心,新疆铁门关841005

出　　处：《河南农业科学》2020年第3期121-128,共8页Journal of Henan Agricultural Sciences

基　　金：新疆生产建设兵团中青年科技创新领军人才计划项目(2019CB032);新疆生产建设兵团第二师农业科技攻关计划项目(2017NYGG05)。

摘　　要：为了解香梨叶片中各种矿质营养元素含量的变化规律及相关关系,对不同产量园的香梨生育期叶片9种矿质元素含量进行了测定和分析.结果表明,不同产量园香梨叶片内同一种营养元素含量的变化趋势基本一致,随着香梨的生长发育,香梨叶片中的N、P含量总体上呈现下降趋势,Mg、Mn含量总体上呈现上升趋势,K、Ca、Cu、Fe、Zn含量总体上呈现先上升后下降的趋势.香梨生长发育期叶片内各矿质营养元素含量的平均值表现为N>K>Ca>P>Mg>Fe>Mn>Zn>Cu,N、P、Ca、Mg、Cu、Mn含量的平均值表现为低产园>中产园>高产园,K含量的平均值表现为低产园>高产园>中产园,Fe、Zn含量的平均值表现为高产园>中产园>低产园.相关性分析表明,库尔勒香梨叶片中各营养元素间存在一定的协同性与拮抗性.N、Mg、Mn含量的平均值与产量呈极显著负相关,P含量的平均值与产量呈显著负相关,Fe含量的平均值与产量呈显著正相关;N与Mg、P与Ca、Ca与Cu、Mg与Mn含量呈极显著正相关,N与Mn、P与Cu、Fe与Zn、K与Ca和Cu含量呈显著正相关,N与Fe、Mg与Fe含量呈极显著负相关,Fe与Mn含量呈显著负相关.生产中要在继续稳定香梨N、P、K、Ca、Mg含量的基础上,进一步提高微量元素Fe、Zn、Cu、Mn肥料的施用量,平衡树体营养,实现香梨稳产、高产的目标.In order to understand the variation rules and correlation of various mineral nutrient elements in the leaves of Korla fragrant pear,the changes of the content of 9 mineral elements in the leaves of different yield Korla fragrant pear orchard during the growth period were determined and analyzed.The result showed that the variation trend of the content of the same nutrient element in the leaves of different yield pear orchard was basically the same.The contents of N and P in the leaves were downward gradually in a year with the development of Korla fragrant pear;Mg and Mn contents were upward;K,Ca,Cu,Fe and Zn contents increased gradually in early growth phase and decreased later.The average values of the mineral nutrient elements in the leaves of Korla fragrant pear during the growth and development period were successively N,K,Ca,P,Mg,Fe,Mn,Zn,Cu.The average values of the N,P,Ca,Mg,Cu and Mn elements contents were showed as low yield orchard>middle yield orchard>high yield orchard,the average value of the K element content was showed as low yield orchard>high yield orchard>middle yield orchard,while the average values of the Fe and Zn elements contents were showed as high yield orchard>middle yield orchard>low yield orchard.Correlation analysis showed that there was a certain synergy and antagonism between the nutrient elements in the leaves of Korla fragrant pear.There was an extremely significantly negative correlation between the average values of the N,Mg and Mn contents and yield,and a significantly negative correlation between the content of P element and yield,and a significantly positive correlation between the content of Fe element and yield.There was an extremely significantly positive correlation between the contents of N and Mg,P and Ca,Ca and Cu,Mg and Mn in the leaves,and a significantly positive correlation between the contents of N and Mn,P and Cu,Fe and Zn,K and Ca,K and Cu in the leaves,and an extremely significanly negative correlation between the contents of N and Fe,Mg and Fe in the leaves,

关 键 词：库尔勒香梨 叶片 营养元素 年变化规律 产量 相关性分析 

分 类 号：S661.2[农业科学—果树学]