Title: Effects of Straw Mulching on ETc and Kc and WUE of Winter Wheat in North of Shandong Province
Abstract: Crop evapotranspiration(ETc),crop coefficient(Kc) and water use efficiency(WUE) are the basic parameters for establishing irrigation schedule and calculating regional water resources balance, and they are changeable under different climate and cultivation.According to the field experiments,the reference crop evapotranspiration is calculated by using Pennan-Monteith equation,the actual crop evapotranspiration is achieved by using the water balance equation and soil water adjustment coefficient,and the crop coefficients of winter wheat under straw mulching and without straw mulching in different stages are calculated based on the above results.The results indicate that ETc and Kc of winter wheat under straw mulching are decreased by 40.3 mm and 9.1% respectively,and WUE is increased by 18.0% than without straw mulching.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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