中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 洋白蜡行道树叶片养分动态及再吸收特征 天津农业科学 2018 (8) 74-76
Position: Home > Articles > 洋白蜡行道树叶片养分动态及再吸收特征 Tianjin Agricultural Sciences 2018 (8) 74-76

洋白蜡行道树叶片养分动态及再吸收特征

作  者：
刘明;马作国;王武;张金龙
关键词：
洋白蜡;叶片养分;动态变化;再吸收
摘  要：
对天津开发区暗管排盐特殊工艺措施下的洋白蜡行道树叶片养分动态及再吸收特征进行了研究.结果表明:年生长周期内,洋白蜡行道树叶片N、P、K等大量营养元素含量均呈逐月下降的趋势,Ca含量呈逐月升高的趋势,Mg含量则呈升高-降低-升高的趋势.洋白蜡行道树叶片N、P养分再吸收利用效率较高,ENR分别为30.85%和28.18%;K养分再吸收利用效率相对较低,ENR仅为10.23%;Ca、Mg等中量营养元素由于移动性较差而不易被再吸收利用,表现为负转移,ENR分别为-42.95%和-14.38%.
作  者：
LIU Ming;MA Zuoguo;WANG Wu;ZHANG Jinlong;Tianjin TEDA Greening Group Company Limited;
单  位：
LIU Ming%MA Zuoguo%WANG Wu%ZHANG Jinlong%Tianjin TEDA Greening Group Company Limited
关键词：
Fraxinus pennsylvanica;;foliar nutrient;;dynamics variation;;resorption
摘  要：
The seasonal dynamics and resorption characteristics of the foliar nutrients in Fraxinus pennysylvanica street tree in TEDA were studied. The results showed that the contents of foliar N, P and K decreased, but the content of foliar Ca increased during the growing season. The content of foliar Mg increased firstly, then dropped, and increased finally during the growing season. The nutrient resorption efficiencies(ENR) of foliar N and P were higher, and ENR was 30.85% and 28.18% respectively; ENR of foliar K was relatively lower, and ENR was only 10.23%; Ca and Mg showed negative transfer because of their poor mobility, and ENR was-42.95%and-14.38% respectively.

相似文章

导出引用
计量
文章访问数: 11
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46