摘要
在河北省5个试验基点研究了大田实验条件下冬小麦春季不同灌水处理的产量效应。结果表明,随灌水次数的增加,小麦产量增加。春灌两水和春灌三水处理籽粒产量显著高于一水处理的产量,但两水与三水处理产量之间没有显著差异。灌溉水的利用效率随灌水次数的增加而降低。初步认为,在选择适宜品种的基础上,河北省大部分麦区冬小麦春季生产上合理的节水灌溉方案为:拔节水、开花水。与传统灌溉技术相比,在冬小麦获得相近产量的前提下,春季灌水次数减少2次,小麦生育期间节水80￣100m3,提高了灌溉水的利用效率。
The effects of irrigation systems in spring on winter wheat were studied in Hebei province. The results showed that with the increase of irrigation times, the grain yield increased. The grain yields of 2 times and 3 times irrigation were significantly higher than that of one time irrigation, but the difference of grain yields between 2 times and 3 times irrigation was not significant. The water use efficiency of irrigation declined with increasing of irrigation times in spring. As a result, it is considered that the rational water-saving irrigation scheme in most area of Hebei province can be： jointing water and flowering water, based on selecting good varieties. Compared with traditional irrigation, this irrigation mode, with close crop yield, decreases irrigation times, saves 80-100 m^3 irrigation water and increases productivity of irrigation water.
出处
《中国农学通报》
CSCD
2007年第3期466-468,共3页
Chinese Agricultural Science Bulletin
基金
国家"粮食丰产科技工程"河北省课题(2004BA520A07)
关键词
冬小麦
籽粒产量
灌溉水利用效率
节水灌溉方案
Winter wheat, Grain yield, Water use efficiency of irrigation, Water-saving irrigation scheme
