Xinjiang Agricultural Sciences ›› 2025, Vol. 62 ›› Issue (5): 1064-1074.DOI: 10.6048/j.issn.1001-4330.2025.05.003

• Crop Genetics and Breeding·Cultivation Physiology·Physiology and Biochemistry • Previous Articles     Next Articles

The effect of different irrigation frequencies on the growth indicators and yield of upland cotton

ZHANG Mengke(), LIN Li(), LIN Hao, HUI Ruihan, YANG Kepan   

  1. College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University,Urumqi 830052,China
  • Received:2024-10-22 Online:2025-05-20 Published:2025-07-09
  • Correspondence author: LIN Li
  • Supported by:
    “R & D of Smart Irrigation Areas and Green Development Models of Modern Agricultural Industry”in Xinjiang Uygur Autonomous Region during the“14th Five Year Plan”(2020A01003-4);"Research on Precision Irrigation and Fertilization Technology and Equipment for Smart Farmland", A Key Research and Development Project in Xinjiang Uygur Autonomous Region(2022B02049)

不同灌溉频次对陆地棉生长指标和产量的影响

张梦珂(), 林丽(), 林豪, 惠瑞晗, 杨可攀   

  1. 新疆农业大学水利与土木工程学院,乌鲁木齐 830052
  • 通讯作者: 林丽
  • 作者简介:张梦珂(1996-),女,硕士研究生,研究方向为智慧水利,(E-mail) 2949192566@qq.com
  • 基金资助:
    新疆维吾尔自治区“十四五”重大专项“智慧灌区与现代农业产业绿色发展模式研究与示范”(2020A01003-4);新疆维吾尔自治区重点研发专项“智慧农田精准灌溉施肥技术与装备研究”(2022B02049)

Abstract:

【Objective】 To explore the optimal irrigation frequency for cotton under film drip irrigation in southern Xinjiang.【Methods】 This experiment used Xin luzhong 54 as the experimental cotton. Through field experiments, four different irrigation frequency treatments were set up: 2 d/time (D2), 4 d/time (D4), 6 d/time (D6), and 8 d/time (D8). The conventional irrigation (CK) of farmers was used as a control treatment to study the response of cotton growth indicators, yield composition, and water use efficiency to different irrigation frequencies. Finally, the objective analysis entropy weight method was used to optimize the irrigation frequency suitable for subsurface drip irrigation in southern Xinjiang.【Results】 Increasing irrigation frequency could promote the growth of cotton plant height, stem diameter, and biomass, and reach the maximum value during the opening period. D2 treatment significantly increased by 9.53%, 20.83%, and 32.03% compared to CK treatment (P<0.05); with the increase of irrigation frequency, the number of bolls per plant and yield of cotton gradually increased. The D2 treatment produced the highest number, reaching 9.21 and 7,546.35 kg/hm2 respectively, but the water consumption was also the highest, at 477.80 mm. The D4 treatment had the highest water use efficiency, at 1.59 kg/m3; The entropy weight results showed that D2 treatment had the highest evaluation result. 【Conclusion】 The experimental results show that under the film drip irrigation of sandy loam soil in southern Xinjiang, when the irrigation quota during the growth period is 3,750 m3/hm2, the entire growth period is irrigated 40 times, and the optimal irrigation cycle is 2 days.

Key words: cotton; underfilm drip irrigation; irrigation frequency; yield; water use efficiency; entropy weight method

摘要:

【目的】探寻新疆南疆棉花膜下滴灌最优的灌溉频次。【方法】以新陆中54号为供试棉花品种,设置大田试验,设置2 d/次(D2)、4 d/次(D4)、6 d/次(D6)、8 d/次(D8)4个不同灌溉频次处理,并以常规灌溉(CK)作为对照处理,研究棉花生长指标、产量构成及水分利用效率等对不同灌溉频次的响应,最终采用客观分析熵权法,优选适于新疆南疆膜下滴灌的灌溉频次。【结果】增加灌水次数可以促进棉花的株高、茎粗和生物量的增长,并在吐絮期达到最大值,D2较CK处理分别显著增加了9.53%、20.83%和32.03%(P<0.05);随着灌溉频次的增加,棉花的单株结铃数和产量逐渐增大,D2处理最高,分别达到9.21个、7 546.35 kg/hm2,但耗水量也最大,为477.80 mm,D4处理的水分利用效率最高,为1.59 kg/m3;D2处理评价结果最高。【结论】新疆南疆砂壤土膜下滴灌棉田,在生育期灌溉定额为3 750 m3/hm2时,整个生育期灌水40次,灌水周期2 d最优。

关键词: 棉花, 膜下滴灌, 灌溉频次, 产量, 水分利用效率, 熵权法

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