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    孙振源, 焦炳忠, 李兴强. 渗灌水肥耦合对同心圆枣生长发育的影响[J]. 北京林业大学学报, 2022, 44(2): 22-29. DOI: 10.12171/j.1000-1522.20200179
    引用本文: 孙振源, 焦炳忠, 李兴强. 渗灌水肥耦合对同心圆枣生长发育的影响[J]. 北京林业大学学报, 2022, 44(2): 22-29. DOI: 10.12171/j.1000-1522.20200179
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    Sun Zhenyuan, Jiao Bingzhong, Li Xingqiang. Effects of water and nitrogen coulping on growth and development of Zizphus jujuba ‘Tongxinyuanzao’ under infiltration irrigation[J]. Journal of Beijing Forestry University, 2022, 44(2): 22-29. DOI: 10.12171/j.1000-1522.20200179
    Citation: Sun Zhenyuan, Jiao Bingzhong, Li Xingqiang. Effects of water and nitrogen coulping on growth and development of Zizphus jujuba ‘Tongxinyuanzao’ under infiltration irrigation[J]. Journal of Beijing Forestry University, 2022, 44(2): 22-29. DOI: 10.12171/j.1000-1522.20200179
    shu

    渗灌水肥耦合对同心圆枣生长发育的影响

    Effects of water and nitrogen coulping on growth and development of Zizphus jujuba ‘Tongxinyuanzao’ under infiltration irrigation

      摘要
    • 摘要:
        目的  本文旨在探究不同水肥耦合处理下旱区同心圆枣各因子的变化，阐明不同水肥耦合对促进枣树生长发育的影响。
        方法  本文以8 年生成龄枣树为研究对象，设置不同灌溉定额（W1：2 250 m3/hm2、W2：3 000 m3/hm2、W3：3 750 m3/hm2） 、 施氮水平（N1：240 kg/hm2、N2：300 kg/hm2、N3：360 kg/hm2）的2因素3水平试验，以探究地下渗灌水肥耦合对同心圆枣叶绿素含量（SPAD）、氮含量（CN）、产量、水分利用效率（WUE）、氮肥偏生产力（PFP）的影响。
        结果  灌水量对枣树叶片的SPAD和CN均有显著影响，但施氮量对枣树叶片的SPAD和CN均无显著影响；随着灌水量和施氮量的增加，枣树叶片的SPAD和CN的总趋势均表现为先增加后降低，W2N3处理的枣树叶片SPAD和CN最高；水肥耦合对枣树单果质量、单株结果数、产量、水分利用效率和氮肥偏生产力均有显著影响，随着灌水量和施氮量的增加，先增加后降低，W2N2处理条件下的水分利用效率最高（2.54 kg/m3），氮肥偏生产力最高（24.15 kg/kg），产量也最高（7 246.26 kg/hm2），与其他处理均达到显著性差异（P < 0.05）。
        结论  适宜的水肥耦合处理（W2N2）有利于提高旱区同心圆枣产量和水分利用效率及氮肥偏生产力，对同心圆枣生长发育有积极影响。

       

      Abstract:
        Objective  This paper aims to explore the changes of various factors of Zizphus jujuba ‘Tongxinyuanzao’ in arid area under different water and fertilizer coupling treatments, and clarify the effects of different water and fertilizer coupling on promoting Z. jujuba ‘Tongxinyuanzao’ growth and development.
        Method  In this study, 8-year-old Z. jujuba ‘Tongxinyuanzao’ was selected as the research object, different irrigation quotas (W1: 2 250 m3/ha; W2: 3 000 m3/ha; W3: 3 750 m3/ha) + nitrogen application rate (N1: 240 kg/ha; N2: 300 kg/ha; N3: 360 kg/ha) 2-factor 3-level test was set, so as to analyze the effects of water and nitrogen coulping with underground infiltration irrigation on jujube leaf chlorophyll content (SPAD) and nitrogen content (CN), yield, water use efficiency (WUE), partial factor productivity of nitrogen (PFP).
        Result  The irrigation had significant effect on the leaf SPAD and N content of Z. jujuba, but the nitrogen application had no significant effect on the leaf SPAD and N content. With the increase of irrigation application and nitrogen, the general trend of leaf SPAD and N content of Zizphus jujuba was firstly increased and then decreased; W2N3 treatment had the highest leaf SPAD and N content. The coupling of water and fertilizer had a significant impact on the mass of single fruit, number of fruits per plant, yield, water use efficiency and partial factor productivity of nitrogen. With the increase of irrigation and nitrogen application, it first increased and then decreased. The W2N2 treatment had the highest water use efficiency (2.54 kg/m3), the highest partial factor productivity of nitrogen (24.15 kg/kg), thehighest yield (7 246.26 kg/ha), which was significantly different from other treatments (P < 0.05).
        Conclusion  The results of this study show that the suitable interaction of water and nitrogen (W2N2) was beneficial to increase the yield of Z. jujuba ‘Tongxinyuanzao’ and achieve ideal water use efficiency and partial nitrogen fertilizer productivity. It has a positive effect on the growth and development of Z. jujuba ‘Tongxinyuanzao’.

       

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