摘要
为了提高绿洲灌区的水资源利用效率,研究了啤酒大麦垄作沟灌栽培的产量效应及节水效果。结果表明,垄作栽培方式有较好的增产、节水、增温效应,与平作栽培相比,4、5月份5cm土层的温度分别提高1.27℃和1.39℃,垄作沟灌栽培啤酒大麦田间长势优于平作栽培,对土壤水分的消耗相对增大,水分对产量的贡献率提高,增产节水效果显著。在相同的灌溉定额下,垄作沟灌较平作栽培啤酒大麦千粒重增加2.10～5.37g,穗粒数增加0.7～7.2粒,产量增加480.5～1 983.6kg.hm-2,增幅6.86%～55.05%,水分利用效率提高5.18%～35.40%,节水1 500m3.hm-2,节水增产效果显著。
To resolve the problem of water supply and demand contradiction in arid areas, a field experiment was carried out to investigate the effects of bed planting and furrow irrigation system on yield and water-saving of beer barley in oasis irrigation region in 2003-2008. The irrigation method was changed from flood irrigation into furrow irrigation. The experimental result indicated that under the condition of bed planting system, the yield and soil temperature were increased. Compared with the conventional flat planting, soil temperature of 5cm soil layer of bed planting raised by 1.27℃ 1.39℃ on April and May, respectively. When the irrigation water volume was the same , 1000-grain weight and the quantity of grains per ear of beer barley increased by 4.94%-12.41% and 2.87%- 43.03%, respectively, the yield increased by 480. 5 - 1983. 6 kg. hm^-2, water use efficiency （WUE） improved by 0.65 - 4.52 kg/（mm. hm^2）. 1 500 m^3 hm^-2 water was saved at the same yield levels, the water-saving effect was very obvious. The results suggested that bed planting and furrow irrigation system would be an efficient water-saving irrigation and yield-increasing method in oasis irrigation region.
出处
《麦类作物学报》
CAS
CSCD
北大核心
2012年第1期145-149,共5页
Journal of Triticeae Crops
基金
中澳政府基金项目(2007DFA91560)
关键词
啤酒大麦
垄作沟灌
水分利用效率
地温
产量
Beer barley
Raised bed planting
Water use efficiency
Soil temperature
Yield
