干旱地区农业研究Issue(5)：12-17,24,7.
鲁北平原咸水滴灌对土壤水盐分布和棉花产量的影响
Effect of saline drip irrigation to soil water and salt distribution and cotton yield in Northern Shandong Plain
摘要
Abstract
The Northern Shandong Plain is an important production base for food,cotton an d oil in Shandong Province .The rational using micro salt water and saline water is an urgent issue .Through the field experiment with small plots,taking the fresh water drip irrigation as the control group,set up the treatments with different saline water drip irri-gation,research the impacts of saline drip irrigation to soil water and salt distribution and cotton yield under the condition of full film mulching .The results showed that:The emergence irrigation can be significantly reduced the soil EC value in main root zone of cotton with the reduction rate between 26 .8%to 29 .0%.The saline drip irrigation can reduce the ab-sorption of soil moisture by cotton,the mainly effected soil layers between 40 to 100 cm .The more of the irrigation water saline degree,the greater impact will be .Compared with the fresh water drip irrigation,drip supplemental irrigation with salinity less than 6 g·L-1 has no significant effect to cotton yield .While drip irrigation with the salinity of 8 g·L-1 can significantly reduce the cotton yield in the less precipitation years .From the accumulation of soil salt,the drip irrigation using the salinity less than 6 g·L-1 ,does not cause the salt accumulation in main root zone of cotton,through the leach-ing soil salt by the Yellow River water and precipitation in summer.This research results can provide the scientific basisfor using the saline water in Northern Shandong Plain.关键词
咸水滴灌/全地膜覆盖/水盐动态/棉花产量Key words
saline drip irrigation/full film mulching/dynamics of water and salt/cotton yield分类
农业科技引用本文复制引用
孙泽强,董晓霞,王学君,郑东峰,董亮,刘兆辉..鲁北平原咸水滴灌对土壤水盐分布和棉花产量的影响[J].干旱地区农业研究,2014,(5):12-17,24,7.基金项目
公益性行业（农业）科研专项经费项目（200903001）；山东省优秀中青年科学家科研奖励基金项目（BS2011NY017）；国家自然科学基金（51209130）；国家科技支撑计划（2013BAD05B06-04）；国家“863”计划课题 （）
