摘要
采用膜沟灌溉方式研究了夏玉米的生长状况及产量、水分利用效率。结果表明,膜沟灌溉在一定程度上抑制了棵间蒸发,促进了夏玉米早期植株生长;与普通沟灌相比,膜沟灌溉的绿叶覆盖地面时间较早,植株叶面积高峰期前移且稳定期较长;膜沟灌溉在降低耗水量的同时,可以使水分利用效率提高约18%而不会降低产量;综合分析夏玉米的产量、水分利用效率、株高、穗长及百粒重等因素,结果表明膜沟灌溉优于普通沟灌。
Film-furrow irrigation is designed for summer maize irrigation and tested for its growth, yield and water use efficiency. The results show that film-furrow irrigation, on some degree, could reduce the soil evaporation and promote the early growth of summer maize. The time of leaves covering the ground under film-furrow irrigation is early than that under common furrow irriga- tion. The leaf area climax moves forward and has a long stationary phase. Film-furrow irrigation can reduce water consumption; meanwhile, the water use efficiency can be increased about 18% with no significant difference of yield. Comprehensively considering the factors of yield, water use efficiency, plant height, ear length and 100 grains weight, it can be concluded that film-furrow irrigation is superior than common furrow irrigation.
出处
《节水灌溉》
北大核心
2012年第9期52-54,57,共4页
Water Saving Irrigation
基金
"十一五"国家高技术研究发展计划项目("863"
2006AA100222)"山东半湿润区现代节水农业技术研究与集成"课题
关键词
膜沟灌溉
夏玉米
生长发育
水分利用效率
film-furrow irrigation
summer maize
growth
water use efficiency
