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- Title
基于单作物系数法指导 南疆棉花膜下滴灌试验研究.
- Authors
杜江涛; 张楠; 龚珂宁; 黄炳川; 杨莹攀; 王兴鹏
- Abstract
The single-crop coefficient method is calculating crop evaporation and transpiration based on evaporation and transpiration of the farmland. It is simple in calculation and requires fewer data. In order to explore the optimal irrigation system of cotton under mulch drip irriga⁃ tion based on single-crop coefficient method in southern Xinjiang, this paper carries out the experiment in Alaer City in southern Xinjiang from 2019 to 2020. Three levels of irrigation time are set in the experiment. When the difference between daily crop evaporation and transpira⁃ tion and precipitation reaches 25, 30 and 35 mm, the corresponding irrigation quota is 30, 36 and 42 mm, respectively. A total of 3 schemes are designed, and each scheme is repeated three times to study the effects of different irrigation treatments on soil water change, cotton growth yield and water use efficiency. When the difference between daily crop evaporation and transpiration and precipitation reaches 25 mm, the combination of 30 mm irrigation quota and 11 times of irrigation in growth period can ensure cotton yield and significantly improve water use efficiency, which is suitable for the irrigation management of cotton under mulch drip irrigation in southern Xinjiang, and provides a reference for achieving irrigation automation in the future.
- Publication
China Rural Water & Hydropower, 2021, Issue 11, p141
- ISSN
1007-2284
- Publication type
Article