排灌机械工程学报2016，Vol.34Issue(4)：332-338,7.DOI:10.3969/j.issn.1674-8530.14.0201
垄植沟灌夏玉米棵间蒸发试验研究
Experiment on soil evaporation of summer maize in furrow irrigation
摘要
Abstract
In order to explore the law of the soil evaporation in summer maize farmland under furrow ir-rigaton,the experiment on the evaporation capacity of summer maize farmland soil and that of ridge and ditch under different furrow irrigation controlling lower limits was conducted .The results show that the evaporation capacity of summer maize farmland soil reduce with the decreasing of soil moisture. Soil evaporation took up a great proportion before the jointing stage in the whole growth period.Soil evaporation capacity at the seedling stage and the jointing stage accounted for 90% and 40% in the transpiration capacity respectively.The linear regression equation for the evaporation of ridge and ditch under different water treatments was fitted,the correlation coefficients were over 0.8,and finally soil e-vaporation after an irrigation after the heading stage and at the seedling stage of summer maize was compared,both of soil evaporation had a decreasing tendency with the lapse of time.The evaporation ratio of ridge to ditch was maintained at about 20 ∶13,which will provide a reference for soil water cycle simulation of summer maize farmland under furrow irrigation.In farmland evaporation of summer maize under furrow irrigation,soil evaporation capacity should be controlled before the jointing stage in order to save water.关键词
夏玉米/沟灌/蒸发量/垄面蒸发/沟面蒸发Key words
summer maize/furrow irrigation/evaporation capacity/evaporation of ridge/evaporation of ditch分类
农业科技引用本文复制引用
刘小飞,费良军,孙景生,张寄阳,汪顺生..垄植沟灌夏玉米棵间蒸发试验研究[J].排灌机械工程学报,2016,34(4):332-338,7.基金项目
国家自然科学基金资助项目（1404528）；公益性行业（农业）科研专项经费资助项目 （）
