EFFECT OF GROUNDWATER LEVEL DEPTH AND IRRIGATION AMOUNT ON WATER FLUXES AT THE GROUNDWATER TABLE AND WATER USE OF WHEAT
作者： Zailin Huo , Shaoyuan Feng , Guanhua Huang , Yanyan Zheng , Yahui Wang
DOI: 10.1002/IRD.685
关键词:
摘要: Three irrigation water regimes (90.0, 67.5, and 45.0 mm) five groundwater table depths (1.5, 2.0, 2.5, 3.0, 3.5 m) were considered in a lysimeter experiment to investigate the effect of level amount on fluxes at use wheat. Results show that deep percolation (irrigation 16–23%) occurred considerable extent present shallow 1.5–2.0 m. Capillary rise comprised 29% wheat, within period from regreening harvest, 1.5 m depth, was reduced with an increase depth. A relationship between contribution depth also found. In conditions, productivity (WPb) wheat enhanced 3.59 kg m-3 shallower 1.5 m, 4.58 kg m-3 deeper 3.5 m. WPb can be higher if deficit is enforced reach 3.93–6.03 kg m-3. Similarly, Hence, per time for local 45.0–67.5 mm, depending order resources effectively. Copyright © 2011 John Wiley & Sons, Ltd.
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