棉花水分敏感指数累积函数研究  

Study on Cumulative Function of Water Sensitive Index for Cotton

作　　者：金建华[1] 王仰仁[1] 孙书洪[1] 韩娜娜[1] 

机构地区：[1]天津农学院水利工程系,天津300384

出　　处：《节水灌溉》2011年第7期4-6,共3页Water Saving Irrigation

基　　金：国家自然科学基金项目(50679055);天津市自然科学基金项目(10JCBJC09400);天津农学院科学研究发展基金资助项目(2008N007)

摘　　要：通过不同的受旱处理,确定了棉花的水分敏感指数累积函数,棉花的时段水分敏感指数值较大的时期在播种后的90~110 d之间,可达到0.025以上。结果表明用生长曲线拟合的敏感指数累积函数能较好地描述运城棉花产量对水分的反应。Through different water deficit treatments,the cumulative function of water sensitive index for cotton was established in this paper.The higher water sensitive index was in the period of 90-110 day after seeding and can reach 0.025.The results demonstrated that the cumulative function of sensitive index represented by a growing curve could describe the response of yield to water deficit for cotton.

关 键 词：棉花 水分生产函数 水分敏感指数 累积函数 

分 类 号：S562[农业科学—作物学]