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Effects of different moisture conserving ways on soil moisture,soil temperature and growth of Jujube in mountain areas of northern Shaanxi
Authors
南娟
李晓彬
汪有科
马婧
Publication date
1 January 2011
Publisher
Abstract
针对陕北地区水资源日趋紧张,雨水、灌溉水利用效率低下的现状,在陕西省米脂县孟岔试验示范区通过定位观测实验,研究了秸秆覆盖(J1J、2、J3)、地膜覆盖(D)及施用保水剂(B16、B12、B8)不同处理对陕北山地枣园土壤温、湿度及生长的动态规。结果表明:覆盖有调节土壤温度的作用,秸秆覆盖与对照温差的幅度为-5.5℃~0.25℃,地膜覆盖与对照温差的幅度为1.32℃~5.17℃;不同保墒措施的保水效果较对照有所提高,J2(秸秆覆盖量2 kg/m2)、D、B12(保水剂施用量120 g/棵)的保墒效果较好,土壤蒸发较对照降低23.6%、26.4%、29.2%,土壤水分提高25%、13.5%、22%,且可以促进枣树生长及提高枣树的产量,J2的产量最高,B12次之,分别比对照提高37.3%、32.8%,由于枣树坐果期D的温度较高,影响坐果,使降低产量。J2、D、B12是保墒效果好的措施,J2、B12是产量高的措施
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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