| 水氮配置对地下渗灌枣树光合特性及产量的影响 |
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| 引用本文： | 李兴强,孙兆军,焦炳忠,韩磊,何俊,王蓉,强晓玲.水氮配置对地下渗灌枣树光合特性及产量的影响[J].中国土壤与肥料,2022(1):25-32. |
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| 作者姓名： | 李兴强 孙兆军 焦炳忠 韩磊 何俊 王蓉 强晓玲 |
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| 作者单位： | 宁夏大学土木与水利工程学院;宁夏大学环境工程研究院;教育部中阿旱区特色资源与环境治理国际合作联合实验室 |
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| 基金项目： | 埃及旱区绿色智能节水关键技术研究与示范(KY201904010);国家重点研发计划(2019YFC1904303);宁夏回族自治区重点研发计划(2021BBF02001,2018BFG02016,2019BFG02032);宁夏回族自治区重点实验室组建项目(2016)。 |
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| 摘 要： | 探寻旱区适宜的水氮配置对地下渗灌枣树光合特性及产量的影响.以8年成龄枣树作为研究对象,设置不同灌溉定额(W1:2250 m3/hm2、W2:3000 m3/hm2、W3:3750 m3/hm2)+施氮量(N1:240 kg/hm2、N2:300 kg/hm2、N3:360 kg/hm2)的2因素3水平试验.分析不同配置...
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| 关 键 词： | 水氮配置 地下渗灌 枣树 光合特性 产量 |
| 收稿时间： | 2020/8/24 0:00:00 |
Effects of water and nitrogen allocation on photosynthetic characteristics and yield of jujube trees with filtration irrigation |
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| LI Xing-qiang,SUN Zhao-jun,JIAO Bing-zhong,HAN Lei,HE Jun,WANG Rong,QIANG Xiao-ling.Effects of water and nitrogen allocation on photosynthetic characteristics and yield of jujube trees with filtration irrigation[J].Soil and Fertilizer Sciences in China,2022(1):25-32. |
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| Authors: | LI Xing-qiang SUN Zhao-jun JIAO Bing-zhong HAN Lei HE Jun WANG Rong QIANG Xiao-ling |
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| Institution: | (School of Civil and Hydraulic Engineering,Ningxia University,Yinchuan Ningxia 750021;Institute of Environmental Engineering,Ningxia University,Yinchuan Ningxia 750021;China-Arab Joint International Research Laboratory for Featured Resources and Environmental Governance in Arid Region,Yinchuan Ningxia 750021) |
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| Abstract: | To explore the effects of suitable water and nitrogen allocations on photosynthetic characteristics and yield of jujube trees with filtration irrigation in arid areas,8 years old jujube trees were used as research objects,and different irrigation quotas(W1:2250 m3/hm2,W2:3000 m3/hm2,W3:3750 m3/hm2) with different nitrogen application rates(N1:240 kg/hm2,N2:300 kg/hm2,N3:360 kg/hm2) were set up.The photosynthesis characteristics(Pn,Tr,Gs,Ci),leaf chlorophyll content(SPAD),nitrogen content(N),water use efficiency(WUE),nitrogen fertilizer partial productivity and yield of jujube under different configurations were analyzed.The Pn,Tr,Gs and Ci of different water and nitrogen allocation reached significant difference(P<0.05).The results showed that,with the increase of water and nitrogen allocation,Pn,Tr,Gs and SPAD gradually increased.The Ci and N decreased with the increase of irrigation amount.The increase in the amount of nitrogen applied significantly increased the value of Ci and N.Appropriate water and nitrogen configuration was conducive to photosynthetic characteristics,leaf SPAD,nitrogen fertilizer bias growth,water use efficiency,yield components and yield.The W2 N2 utilization efficiency was up to 2.54 kg/m3,and the nitrogen fertilizer bias was up to 24.15 kg/kg.The yield component and yield(7246.26 kg/hm2) ranked only second to W3 N3.Considering the photosynthesis characteristics,chlorophyll content,nitrogen content,water consumption,yield and nitrogen fertilizer partial productivity of jujube trees from the interaction of water and nitrogen configuration,selecting suitable water and nitrogen allocation is not only beneficial to increase jujube yield,but also achieve ideal water utilization efficiency and nitrogen fertilizer partial productivity.It can be concluded that the appropriate water and nitrogen configuration are 3000 m3/hm2 of irrigation amount and 300 kg/hm2 of nitrogen application rate,which can provide reference for high yield and high efficient production of jujube trees with filtration irrigation in the dry land of Tongxin area,Ningxia. |
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| Keywords: | water and nitrogen configuration subsurface infiltration irrigation jujube trees photosynthetic characteristics yield |
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