东北半干旱抗旱灌溉区有限供水对大豆水分利用效率的影响研究  

Influence of limited Water Supply on WUE of Soybean in Northeast Semi-arid and Anti-drought Irrigation Condition Region

作　　者：魏永霞 张忠学[1] 王立敏[1] 

机构地区：[1]东北农业大学水利与建筑学院

出　　处：《灌溉排水学报》2006年第5期6-8,13,共4页Journal of Irrigation and Drainage

基　　金：国家"863"计划项目(2002AA2Z4251);黑龙江省自然科学基金项目(C200410);黑龙江省博士后科研基金项目

摘　　要：东北半干旱区是我国北方旱农地区的重要组成部分,多数地区没有灌溉水源。降水量少,时空分布不均,春风大,蒸发强,春旱已成为制约本区农业生产的主要因素。为了探索适合于东北半干旱区的农业抗旱节水技术集成模式,针对本区的资源环境和灾害特点等,选取了坐水播种和苗期补灌技术,结合盆栽试验,在坐水播种和苗期补水条件下研究了不同的供水处理对大豆的生长发育及其水分利用效率的影响,提出了水分利用效率的最佳供水模式。Northeast semi-arid region is one of the main parts of the north dry farming area, most of which no irrigation water resources. There is less rainfall with un-uniform distribution, more windy weather in spring and intensive evaporation in the region, spring drought is a main factor to limit the agricultural production of the region. To get anti-drought and water-saving technological assembling pattern which is suitable to northeast semi-arid region, according to the characteristics of the resources, environment and the natural disaster to agriculture, the technologies of bed-irrigation and seedling stage mending irrigation were selected. Based on the experiment in pot, the influences of different water supply condition on soybean＇s growing and WUE were studied, the water supplying pattern under the condition of highest WUE is proposed in the paper.

关 键 词：坐水播种 苗期补灌 大豆 水分利用效率 

分 类 号：S565.1[农业科学—作物学]