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Optimal irrigation amount can increase cotton lint yield by improving canopy structure and microenvironment under non-film deep drip irrigation

文献类型: 外文期刊

作者: Li, Nannan 1 ; Li, Junhong 1 ; Tung, Shahbaz Atta 2 ; Shi, Xiaojuan 1 ; Hao, Xianzhe 3 ; Shi, Feng 1 ; Wahid, Muhammad Ashfaq 2 ; Ali, Basharat 4 ; Rashid, Rida 5 ; Wang, Jun 3 ; Luo, Honghai 1 ;

作者机构: 1.Shihezi Univ, Key Lab Oasis Ecoagr, Xinjiang Prod & Construct Grp, Shihezi 832003, Xinjiang, Peoples R China

2.Univ Agr Faisalabad, Dept Agron, Faisalabad 38000, Pakistan

3.Xinjiang Acad Agr & Reclamat Sci, Soil & Water Res Inst, Shihezi 832000, Peoples R China

4.Khwaja Fareed Univ Engn & Informat Technol, Fac Engn & Technol, Rahim Yar Khan 64380, Pakistan

5.Univ Agr Faisalabad, Dept Bot, Faisalabad 38000, Pakistan

6.Minist Agr & Rural Affairs, Key Lab Northwest Oasis Water Saving Agr, Shihezi 832000, Peoples R China

关键词: Cotton; Deep drip irrigation; Non-film mulching; Canopy microenvironment

期刊名称:JOURNAL OF CLEANER PRODUCTION ( 影响因子:11.072; 五年影响因子:11.016 )

ISSN: 0959-6526

年卷期: 2022 年 360 卷

页码:

收录情况: SCI

摘要: In the arid region of Northwest China, exploring the feasibility of using non-film deep drip irrigation (DDI) instead of film drip irrigation to solve the problem of residual film pollution is an urgent task. Therefore, in this study, we hypothesized that efficient and clean production can be achieved by optimizing the irrigation amount of non-film cotton, thus improving the canopy environment and increasing the accumulation and distribution of biomass. A 2-year field experiment was performed to compare the cotton canopy microenvironment, biomass accumulation, lint cotton yield and fibre quality attributes under various irrigation levels. The experiment was arranged in a randomized complete block design with five irrigation amount treatments (m(3) ha(-1)): 2649 (W-1); 2925 (W-2); 3201 (W-3); 3477 (W-4); and 3753 (W-5). The results revealed that an increase in the irrigation amount decreased the transmittance of canopy photosynthetically active radiation (PAR) by 4.1-18.7%, while the cotton plant biomass (CPB) and reproductive organ biomass (ROB) were significantly increased by 7.6-5.9% and 22.0-54.1%, respectively. The fibre quality did not differ significantly among treatments. Moreover, under the W4 treatment, the leaf area index (LAI), mean tilt angle (MTA), canopy humidity and cotton lint yield were increased by 1.4-22.3%, 0.3-8.7%, 0.6-2.9% and 4.4-18.7%, respectively, and the canopy temperature was decreased by 0.2-2.2% as compared to the other treatments. The lint cotton yield was negatively correlated with the canopy humidity from the initial squaring stage to the full boll stage. This comprehensive evaluative analysis suggests that the optimal irrigation amount of non-film cotton is 3477 m(3) ha(-1) under the studied conditions, and this irrigation method is recommended as an alternative to film drip irrigation as it allows cotton to be planted without worrying about plastic pollution in irrigated agricultural areas. This study enriches the high-efficiency cotton planting technologies of non-film DDI and provides scientific guidance for the further popularization and application of non-film cotton.

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