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土壤扩蓄增容肥对春玉米产量及水分利用效率的影响
Authors
冯浩
吴普特
杜建
王珍
Publication date
1 January 2009
Publisher
Abstract
通过正交试验,研究秸秆配方、绵土配方2种土壤扩蓄增容肥对春玉米的应用效果。结果表明:在春玉米品种、肥料用量及灌水量共同影响下,秸秆配方、绵土配方土壤扩蓄增容肥在减少无机肥料用量28.6%情况下,仍能起到保持产量的作用;同时秸秆配方能有效提高水分利用效率与降水利用效率。与对照相比,秸秆配方在苗期及拔节期能有效减少土壤无效蒸发,提高0~20cm土壤水分的保蓄能力。该研究为秸秆配方土壤扩蓄增容肥的推广奠定了理论基础
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018