生态与农村环境学报 ›› 2018, Vol. 34 ›› Issue (7): 606-613.doi: 10.11934/j.issn.1673-4831.2018.07.005

• 自然保护与生态 • 上一篇    下一篇

不同灌溉方式下施氮水平对设施春黄瓜产量及氮肥利用率的影响

蔡树美1, 张中华2,3, 徐四新1, 张德闪1, 曹亮亮4, 顾富家5, 诸海焘1   

  1. 1. 上海市农业科学院生态环境保护研究所, 上海 201403;
    2. 上海华维节水灌溉股份有限公司, 上海 201505;
    3. 上海节水灌溉工程技术研究中心, 上海 201505;
    4. 时科生物科技(上海)有限公司, 上海 201100;
    5. 申农(上海)生态农业发展有限公司, 上海 202150
  • 收稿日期:2017-09-22 出版日期:2018-07-25 发布日期:2018-07-25
  • 通讯作者: 诸海焘 E-mail:htzhu123@sohu.com
  • 作者简介:蔡树美(1984-),女,江苏溧阳人,副研究员,博士,主要从事植物营养与生理方面的研究。E-mail:caishumei@saas.sh.cn
  • 基金资助:

    国家星火计划(2015GA680001);上海市科委成果转化项目(153919N0402);上海市农委重点推广项目(沪农科推字[2015]第2-2号);崇明县科技攻关项目(CKS2016-02);上海市科委长三角科技联合攻关项目(18295810500);国家科技重大专项(2017ZX07202004-004)

Effects of Different Irrigation Pattern and Nitrogen Input Levels on Fruit Yield and N Use Efficiency of Greenhouse Cucumber in Early Spring

CAI Shu-mei1, ZHANG Zhong-hua2,3, XU Si-xin1, ZHANG De-shan1, CAO Liang-liang4, GU Fu-jia5, ZHU Hai-tao1   

  1. 1. Eco-Environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China;
    2. Shanghai Huawei Water Saving Irrigation Corp. Ltd., Shanghai 201505, China;
    3. Shanghai Water Saving Irrigation Engineering Technology Research Center, Shanghai 201505, China;
    4. SEEK Bio-Technology(Shanghai) Co. Ltd., Shanghai 201100, China;
    5. Shennong(Shanghai) Ecological Agriculture Development Co. Ltd., Shanghai 202150, China
  • Received:2017-09-22 Online:2018-07-25 Published:2018-07-25

摘要:

水肥管理不当是设施春黄瓜生产中的常见限制因子。采用滴灌水肥一体化栽培方式,结合裂区试验研究灌溉方式和氮肥用量对设施春黄瓜产量及氮肥利用率的影响,以期为设施春黄瓜合理水肥一体化管理提供理论依据。结果表明:滴灌水肥一体化栽培方式明显促进了设施春黄瓜的生长发育,提高了产量和氮肥利用率。相同氮肥用量下,滴灌处理设施春黄瓜的茎粗、株高和叶片数均有所增加,平均增幅分别达5.8%、8.5%和14.0%;滴灌处理单果重显著高于喷灌处理,但对果实纵径和果实横径的影响较小;滴灌处理可以明显增加黄瓜果实中干物质量、地上部氮素累积量和氮肥利用率。合理施氮能促进设施春黄瓜地上部的生长,滴灌最优施氮量(245.0 kg·hm-2)条件下,黄瓜产量最高可达82 913.4 kg·hm-2;喷灌最优施氮量(418.8 kg·hm-2)条件下,黄瓜产量最高可达63 792.6 kg·hm-2。当氮肥用量超过最优施氮量时会抑制黄瓜生长,株高、茎粗、叶片数、单果重和果实纵径等指标均有所下降。设施春黄瓜选用滴灌方式进行灌溉施肥,能较好地发挥水肥耦合效应,与喷灌相比,其节肥稳产效果更好,且施氮量以245.0 kg·hm-2为宜。

关键词: 滴灌, 水肥一体化, 产量, 氮肥利用率

Abstract:

Improper water and fertilizer management is a common restriction factor for the production of spring cucumber under protected cultivation. A field split plot experiment was conducted to study effects of irrigation mode and nitrogen fertilizer application rate on yield and N use efficiency of greenhouse cucumber in early spring, providing a theoretical foundation for integrated management of reasonable water and fertilizer application under protected cultivation. The results show that the integration of irrigation and fertilizer obviously promoted the growth of greenhouse cucumber and increased the yield and N use efficiency. Under the same nitrogen levels, drip fertigation increased stem diameter, plant height and leaf number of greenhouse cucumber by 5.8%, 8.5% and 14.0%, respectively. Compared with spray fertigation, drip fertigation significantly increased the weight of single fruit, the amount of dry matter, nitrogen accumulation and N use efficiency, while the influence on fruit longitudinal diameter and transverse diameter was comparative less. The aerial growth of greenhouse cucumber in early spring can be promoted by proper application amount of N fertilizer. Under the optimum nitrogen fertilizer application amount, fruit yield could grow up to 82 913.4 and 63 792.6 kg·hm-2 in the drip fertigation treatment (N basal application 245.0 kg·hm-2) and spray fertigation treatment (N basal application 418.8 kg·hm-2), respectively. However, excessive N fertilizer inhibited the growth of cucumber, reducing plant height, stem diameter, leaf number, weight of single fruit and fruit longitudinal diameter. Therefore, drip fertigation could synchronize nitrogen reducing application and water saving irrigation, improving cucumber yield and N use efficiency, and the optimum nitrogen amount was about 245.0 kg·hm-2.

Key words: drip irrigation, fertigation, fruit yield, N use efficiency

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