摘要
以夏玉米为试验材料,研究了2012—2014年宽垄种植方式下夏玉米耗水规律。结果表明,2012—2014年夏玉米全生育期内阶段耗水量变化较大;当水分控制下限为田间持水率的80%时,与常规种植相比,宽垄种植方式下夏玉米全生育期耗水量减少15.95~23.12mm;2012—2014年夏玉米产量随耗水量的变化趋势均表现为＂迅速增长-缓慢增长-负增长＂趋势;当耗水量为365.37mm时,宽垄种植时夏玉米产量较常规种植提高393.75kg/hm2,说明宽垄种植有利于实现节水高产的目标。
With summer maize as the experimental material, the water consumption characteristics of sum- mer maize in wide ditch planting way were studied from 2012 to 2014. The results showed that the change of water consumption of summer corn in the reproductive period was bigger; Compared with the conven- tional planting mode, when the lower limit of soil moisture was 80 % of field capacity, the water consump- tion of summer maize in the whole stages reduced by 15.95-23.12 mm in wide ridge planting mode; Sum- mer maize yield changed along with water consumption, whose trend was ＂rapid growth, slow growth, negative＂ over 2012--2014; Compared with conventional planting mode, the yield of summer maize in- creased by 393.75 kg/hm2 in wide ridge planting mode when the water consumption was 365.37 mm. The wide ridge planting mode is helpful to realize the goal of water-saving and high-yield.
出处
《灌溉排水学报》
CSCD
北大核心
2015年第7期62-66,共5页
Journal of Irrigation and Drainage
基金
国家自然科学基金项目(51279157)
河南省教育厅科学技术研究重点项目(12A210018)
河南省高等学校青年骨干教师资助计划项目
华北水利水电大学高层次人才科研启动项目
关键词
宽垄种植
夏玉米
耗水规律
wide ditch planting
summer maize
water consumption characteristics
