Xinjiang Agricultural Sciences ›› 2019, Vol. 56 ›› Issue (11): 1971-1978.DOI: 10.6048/j.issn.1001-4330.2019.11.002

Previous Articles     Next Articles

Effects of Nitrogen Fertigation Frequency and Proportion on Yield and Nitrogen Use Efficiency of Machine-picked Cotton

YIN Xing1, LU Tao2, ZENG Qing-tao2, ZHANG Wen2, GENG Ya-hong2, YANG Zhen-hua3, ZHOU Hua3, MIN Wei1, YE Jun1, HOU Zhen-an1   

  1. 1. Department of Resources and Environmental Science, College of Agronomy, Shihezi University, Shihezi Xinjiang 832003, China;
    2.Agricultural Research Institute of the Seventh Division, Xinjiang Production and Construction Corps, Kuitun Xinjiang 833200, China;
    3.125th Regiment of the Seventh Division, Xinjiang Production and Construction Corps, Kuitun Xinjiang 833203, China
  • Received:2019-08-02 Online:2019-11-20 Published:2019-12-09
  • Correspondence author: YE Jun (1974-) male, Birthplace:Huocheng, Xinjiang, associate professor, engaging in new fertilizer and modern fertili-zation technology research, (E-mail) yejun. Shz@ 163.com
  • Supported by:
    Supported by the National Key R & D Projects(2017YFD0200100 and 2018YFD0800800) ; Young and Middle-aged Science and Technology Innovation Leading Talents Program (2016BC001)

氮肥滴施次数及比例对机采棉产量和氮肥利用率的影响

殷星1, 禄涛2, 曾庆涛2, 张文2, 耿亚红2, 杨振华3, 周华3, 闵伟1, 冶军1, 侯振安1   

  1. 1.石河子大学农学院资环系,新疆石河子 832003;
    2.新疆生产建设兵团第七师农科所,新疆奎屯 833200;
    3.新疆生产建设兵团第七师125团,新疆奎屯 833203
  • 通讯作者: 冶军( 1974-) ,男,新疆霍城人,副教授,研究方向为新型肥料研制与施肥技术,( E-mail) yejun.shz@ 163.com
  • 作者简介:殷星(1996-),男,新疆呼图壁人,硕士研究生,研究方向为新型肥料与现代施肥技术,(E-mail)yxaa@163.com
  • 基金资助:
    国家重点研发计划(2017YFD0200100,2018YFD0800800);兵团中青年科技创新领军人才计划(2016BC001)

Abstract: Objective】 A field experiment was conducted to examine the effects of nitrogen (N) fertigation frequency and proportion on yield and N use efficiency of machine-picked cotton under drip irrigation conditions from 2017 to 2018. 【Methods】 The experiment consisted of 5 treatments: (1) control (no N fertilization (CK); (2) N fertigation 8 times plus former-lower-latter-higher (farmers conventional fertigation, N8-B), (3) N fertigation 8 times plus former-higher-latter-lower (N8-F), (4) N fertigation 10 times plus former-lower-latter-higher (N10-B), (5) N fertigation 10 times plus former-higher-latter-lower (N10-F).【Results】 Increasing the frequency of N fertigation significantly increased the dry matter weight and N uptake of cotton in both 2017 and 2018. Under the same N fertigation frequency, the dry matter weight and N uptake of cotton were significantly higher in the former-higher-latter-lower treatments (F) than those in the former-lower-latter-higher treatments (B). Compared with N8 treatments, the yield of cotton in N10 treatments increased by 17.9% and 34.7% respectively, in 2017 and 2018; and NUE of cotton increased 17.9 and 34.7 percentage point, respectively. The yield of cotton in N8-F and N10-F treatments were 7.0% - 11.1% and 12.1% - 21.5% higher than those under N8-B and N10-B treatments. NUE of N8-F and N10-F treatments were 12.0-26.5 and 11.2-24.9 percentage points higher than those of N8-B and N10-B treatments, respectively. 【Conclusion 】 Increasing N fertigation frequency and the proportions at the early stage can promote the growth and N uptake, and increase the yield and NUE of machine-picked cotton.

Key words: machine-picked cotton; nitrogen fertilizer; fertigation frequency and proportion; yield; nitrogen use efficiency

摘要: 目的】 研究氮肥随水滴施次数和分配比例对机采棉生长、产量以及氮肥利用率的影响。【方法】 2017~2018两年田间试验,设置5个处理:(1)不施氮肥(CK),(2)施肥8次+前轻后重(习惯施肥,N8-B),(3)施肥8次+前重后轻(N8-F),(4)施肥10次+前轻后重(N10-B),(5)施肥10次+前重后轻(N10-F)。【结果】 增加氮肥施用次数显著提高棉花干物质重和氮素吸收量。在相同氮肥滴施次数下,氮肥分配“前重后轻”处理(F)棉花干物质重和氮素吸收量均显著高于“前轻后重”处理(B)。2017和2018年,施肥10次处理棉花产量较施肥8次处理分别增加17.9%和34.7%,棉花氮肥利用率分别提高了24.02和28.61个百分点。N8-F和N10-F处理棉花产量较相同施肥次数的N8-B和N10-B处理分别增加7.0%~11.1%和12.1%~21.5%,氮肥利用率分别提高了12.0~26.5和11.2~24.9个百分点。【结论】 增加氮肥滴施次数及前期施用比例可促进滴灌机采棉生长和氮素吸收,提高机采棉产量和氮肥利用率。

关键词: 机采棉, 氮肥, 滴施次数及比例, 产量, 氮肥利用率

CLC Number: