摘要
以夏玉米为试验材料,设置不同水分处理,研究常规沟灌和小麦、玉米一体化垄作沟灌对灌水质量及夏玉米产量的影响。结果表明,一体化垄作沟灌的灌水效率高于常规沟灌;随着水分控制下限的上升,不同沟灌方式田间灌溉水利用率都有所下降,但一体化垄作沟灌下降更为明显;2种灌水方式下灌水均匀度均较高,且常规沟灌灌水均匀度更理想;不同沟灌方式下,一体化垄作沟灌增产明显,平均增产率达8.67%;过低或过高的水分处理对产量及其构成因子都会造成不利影响。水分控制下限适宜,小麦、玉米一体化垄作沟灌节水增产明显。
With summer maize as the experimental material, different water treatments were set up to study the effects of conventional furrow and wheat ＆ corn integration ridge tillage furrow on irrigation water quality and the summer maize yield. The results showed that：irrigation water efficiency under furrow irri- gation with integration ridge tillage were higher than that under conventional furrow irrigation; Ea both de- creased with the increase of soil moisture lower control limit, and Ea decreased more obviously under fur- row irrigation with integration ridge tillage. Under two irrigation modes, irrigation uniformities were both higher,especially under conventional furrow irrigation . Under different furrow irrigation modes,the corn yield was improved significantly under furrow irrigation with integration ridge tillage and the average growth rate was 8.67~. Too low or too high moisture were both unfavourable to yield and its compo- nents. With suitable moisture lower control limit, the effects of water-saving and improving yield were more obvious under furrow irrigation with wheat corn integration ridge tillage.
出处
《灌溉排水学报》
CSCD
北大核心
2013年第6期68-71,共4页
Journal of Irrigation and Drainage
基金
国家科技支撑计划项目(2007BAD88B02)
河南省教育厅科学技术研究重点项目(12A210018)
华北水利水电大学研究生教育创新计划基金资助项目(YK2012-07)
关键词
沟灌
夏玉米
灌水利用效率
灌水均匀度
水分利用效率
furrow irrigation
summer maize
irrigation water efficiency
irrigation uniformity
WUE
