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棉花学报 ›› 2021, Vol. 33 ›› Issue (5): 404-411.doi: 10.11963/cs20210029

• 研究与进展 • 上一篇    下一篇

滴灌带埋设深度对无膜棉产量形成的影响

段佳宏1(),李楠楠1(),王军2,李军宏1,郝先哲2,罗宏海1,*(),杨国正3,*()   

  1. 1.石河子大学农学院,新疆 石河子 832000
    2.农业部作物高效用水石河子实验观测站/新疆农垦科学院水土所,新疆 石河子 832000
    3.华中农业大学植物科学与技术学院,武汉 430070
  • 收稿日期:2021-05-06 出版日期:2021-09-15 发布日期:2022-01-27
  • 通讯作者: 罗宏海,杨国正 E-mail:jiahongduan@163.com;linann0809@163.com;luohonghai79@163.com;ygzh9999@mail.hzau.edu.cn
  • 作者简介:段佳宏(1999―),女,本科生, jiahongduan@163.com;|李楠楠(1996―),女,博士生, linann0809@163.com
  • 基金资助:
    国家自然科学基金项目(32160512);新疆生产建设兵团中青年科技创新领军人才计划项目(2017CB005)

Effect of embedded depth of drip irrigation belt on the yield of cotton without plastic mulching

Duan Jiahong1(),Li Nannan1(),Wang Jun2,Li Junhong1,Hao Xianzhe2,Luo Honghai1,*(),Yang Guozheng3,*()   

  1. 1. College of Agronomy, Shihezi University, Shihezi, Xinjiang 832000, China
    2. Shihezi Experimental Observation Station of Crop Water Efficient, Ministry of Agriculture/ Soil and Water Institute of Xinjiang Academy of Agricultural Reclamation Sciences, Shihezi, Xinjiang 832000, China
    3. College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
  • Received:2021-05-06 Online:2021-09-15 Published:2022-01-27
  • Contact: Luo Honghai,Yang Guozheng E-mail:jiahongduan@163.com;linann0809@163.com;luohonghai79@163.com;ygzh9999@mail.hzau.edu.cn

摘要:

【目的】探究北疆无膜栽培条件下滴灌带埋设深度影响棉花产量的作用机理,为新疆棉花绿色高效栽培技术的制定与完善提供理论支撑。【方法】以新陆早74号为试验材料,设置3个滴灌带埋设深度处理(D1:10 cm,D2:15 cm,D3:20 cm),研究埋设深度对棉花生育进程、干物质积累、产量及品质的影响。【结果】与D1处理相比,D3处理苗期延长4 d;在盛花期后棉花生殖器官及营养器官干物质积累量均随滴灌带埋设深度增加而增加,吐絮期D3处理生殖器官干物质积累量较D2、D1处理分别高25.5%、54.3%;棉花总铃数、铃重及籽棉产量均在D1处理最低,D2与D3处理间无显著差异;棉花纤维长度、伸长率及断裂比强度在D2与D3处理间无显著差异,但D3处理较D1处理分别增加5.9%、0.29百分点、10.2%,且差异显著。【结论】无膜条件下增加滴灌带埋设深度可促进棉花生殖器官干物质积累,提高棉花产量,改善纤维品质;但从稳产角度来看,15 cm是无膜棉最佳滴灌带埋设深度。

关键词: 地下滴灌; 无膜棉; 干物质; 产量

Abstract:

[Objective] This study aims to explore the effect of embedded depth of drip irrigation belt on cotton yield in the field without plastic mulching in Northern Xinjiang, and to provide scientific theory for green and efficient cotton cultivation techniques in Xinjiang. [Method] Using Xinluzao 74 as the material, three embedded depths of drip irrigation belt (D1: 10 cm, D2: 15 cm, D3: 20 cm) were set to study the effects on the developmental course, dry matter accumulation, yield and quality of cotton. [Result] Compared with D1 treatment, the seedling stage was prolonged by 4 d in D3 treatment. After full-blooming stage, the dry matter accumulation of reproductive organs and vegetative organs of cotton increased along with the increase of the depth of embedded drip irrigation belt. The dry matter accumulation in reproductive organs of D3 treatment was 25.5% and 54.3% higher than that of D2 and D1 treatment at boll-opening stage, respectively. The total boll number, boll weight and seed cotton yield were the lowest in D1 treatment, and no significant differences were found between D2 and D3 treatment. There were no significant differences in cotton fiber length, fiber elongation and breaking tenacity between D2 and D3, but significantly increased by 5.9%, 0.29 percentage point and 10.2% in D3 treatment compared with D1 treatment, respectively. [Conclusion] Without plastic film mulching, the increased embedded depth of drip irrigation belt lead to increased accumulation of dry matter in reproductive organs and higher yield and improved fiber quality of cotton. Considering the stability of yield, 15 cm is the most suitable embedded depth of the drip irrigation belt for cotton plantation without plastic mulching.

Key words: subsurface drip irrigation; plastic-mulching free cotton; dry matter; yield