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 > 不同灌水条件下施氮量对滴灌夏棉冠层指标的影响 灌溉排水学报 2019 (6) 31-36
Position: Home > Articles > 不同灌水条件下施氮量对滴灌夏棉冠层指标的影响 Journal of Irrigation and Drainage 2019 (6) 31-36

不同灌水条件下施氮量对滴灌夏棉冠层指标的影响

作  者：
司转运;高阳;李双;张传更;刘俊明;段爱旺
单  位：
中国农业科学院农田灌溉研究所/农业部作物需水与调控重点开放实验室
关键词：
灌水;施氮量;夏棉;冠层指标;滴灌
摘  要：
[目的]揭示施氮量对滴灌夏棉冠层指标的调控作用.[方法]设置3个灌水水平(滴灌,灌水定额30、22.5、15mm,分别记为I1、I2、I3)和5个氮素水平(0、60、120、180、240 kg/hm~2,分别记为N0、N1、N2、N3、N4),研究了不同灌水条件下施氮量对株高、叶面积指数、叶片含氮量和比叶重的影响.[结果]I2条件下,株高和叶面积指数随施氮量增加呈不断增加趋势,施氮量为240 kg/hm~2时达到最大.I1和I3条件下,增加施氮量,株高和叶面积指数先增加后减小,在施氮量为60或120 kg/hm~2的处理达到最大.夏棉比叶重和叶片含氮量随着生育期推进分别呈不断上升和不断下降趋势,5个施氮水平下夏棉叶片比叶重均表现为I1
作  者：
SI Zhuanyun;GAO Yang;LI Shuang;ZHANG Chuangeng;LIU Junming;DUAN Aiwang;Key Laboratory of Crop Water Use and Its Regulation, Ministry of Agriculture/Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences;
单  位：
SI Zhuanyun%GAO Yang%LI Shuang%ZHANG Chuangeng%LIU Junming%DUAN Aiwang%Key Laboratory of Crop Water Use and Its Regulation, Ministry of Agriculture/Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences
关键词：
irrigation;;nitrogen application rate;;summer cotton;;canopy structure;;dirp irrigation
摘  要：
【Objective】This paper aims to investigate the impact of different combinations of irrigation schedule and nitrogen application on canopy traits of summer cotton.【Method】The experiment was conducted at a field under drip irrigation in Xinxiang of Henan province. We compared three irrigation amounts: 30(I1), 22.5(I2) and15 mm(I3), and five nitrogen applications: 0(N0), 60(N1), 120(N2), 180(N3) and 240 kg/hm~2(N4). In each treatment, we measured plant height, leaf area index(LAI), leaf nitrogen content(LNC) and specific leaf weight(SLW).【Result】When the irrigation was 30 mm, plant height and LAI increased with nitrogen application up to240 kg/hm~2. When the irrigation was 30 mm and 15 mm, the plant height and LAI firstly increased with nitrogen application up to 120 kg/hm~2 and then declined with a further increase in nitrogen application. As the plant grew,SLW monotonically increased while the LNC declined. In all nitrogen treatments, the SLW increased as irrigation amount decreased. Correlation analysis revealed that the yield and LAI were best correlated with R~2=0.7035,while the yield and SLW was worst correlated with R~2=0.072 6.【Conclusion】Nitrogen application significantly increased plant height, LAI and LNC. Water deficit effectively increased the SLW at flowering-bolling stage. The seed-yield and LAI was best correlated, implicating that LAI can be used as an indicator to predict summer cotton production.

相似文章

导出引用
计量
文章访问数: 9
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