| Effects of different water treatments on yield and water use efficiency of cotton with drip irrigation under film mulch |
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| DOI：10.7606/j.issn.1000-7601.2012.02.21 |
| Key Words: drip irrigation under film mulch water treatment water use efficiency |
| Author Name | Affiliation | | SHEN Xiaojun | Key Laboratory for Crop Water Use and Regulation, Ministry of Agriculture, P.R.China, Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang, He'nan 453003, China | | ZHANG Jiyang | Key Laboratory for Crop Water Use and Regulation, Ministry of Agriculture, P.R.China, Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang, He'nan 453003, China | | LIU Zugui | Key Laboratory for Crop Water Use and Regulation, Ministry of Agriculture, P.R.China, Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang, He'nan 453003, China | | LI Mingsi | College of Water Conservancy and Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832003, China | | YANG Guisen | Irrigation Experiment Station of Water Conservancy Bureau in Xinjiang Production and Construction Crops, Urumqi, Xinjiang 832002, China | | SUN Jingsheng | Key Laboratory for Crop Water Use and Regulation, Ministry of Agriculture, P.R.China, Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang, He'nan 453003, China |
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| Abstract: |
| In order to explore convenient and efficient irrigation pattern of cotton with drip irrigation under the condition of film mulch, field plot experiment was conducted to study the effects of different water treatments on the growth and seed cotton yield of cotton in Xinjiang in 2007 and 2009. The results of tests in two growth seasons showed that negative effects of continuous water deficit treatment on seed cotton yield and water consumption process was found at the bud and boll stages compared to the sufficient irrigation treatment during the whole growth period of cotton with drip irrigation under mulch; but the seed cot
ton yield and water use efficiency were improved respectively by -1.20%～1.69% and 27.94%～34.85% under timely and moderate water deficit treatment, and 22.78%～24.88% of irrigation water was saved. It suggests that the irrigation approach
of Regulated Deficit Irrigation (moderate water deficit during bud emergence (70% water surface evaporation was irrigated), severe water deficit during boll stage (50% water surface evaporation was irrigated ), and sufficient water supply during flowering stage (100% water surface evaporation was irrigated )) is suitable and practical on cotton with drip irrigation under film mulch in Xinjiang. |
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