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机构地区:[1]西北农林科技大学 [2]石河子大学,新疆石河子832000
出 处:《节水灌溉》2007年第5期14-16,共3页Water Saving Irrigation
基 金:国家自然科学基金(30460062)项目
摘 要:试验研究了膜下滴灌方式下持续利用咸水灌溉对棉花生长和产量的影响。试验设置了3种灌溉水盐度水平:0.33(淡水)、3.626、.71 dS/m。结果表明:土壤盐分表现出了不同程度的表聚;不同灌溉水盐度处理棉花的干物质积累无明显差异。咸水灌溉后,棉花的产量随着灌溉水盐度的增加有所降低,但差异不显著,说明棉花具有一定的耐盐性,少量咸水灌溉对棉花生长和产量的影响不明显。The influence of drip irrigation under film with saline water on growth and yield of cotton was studied through field experiment. The experiment included three salinity levels of irrigation water as 0. 33, 3.62, and 6.71dS/m The result showed that the soil salinity assumes surface accumulation in different degree, the yield of cotton decreased with the increase of the salinity levels of irrigation water, but the differences were insignificant. This indicated that the influence of irrigation with little quantity of saline water on the growth and yield of cotton was insignificant because of its salt tolerance.
分 类 号:S275.6[农业科学—农业水土工程] S273.5[农业科学—农业工程]
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