中国农业科学2011，Vol.44Issue(16)：3312-3322,11.DOI:10.3864/j.issn.0578-1752.2011.16.003
不同沟垄覆盖方式对冬小麦土壤水分及水分利用效率的影响
Effects of Different Furrow-ridge Mulching Ways on Soil Moisture and Water Use Efficiency of Winter Wheat
摘要
Abstract
[Objective] The objective of the experiment was to explore the effect of soil water conservation, grain yield and income increments of winter wheat under different furrow-ridge mulching cultivation conditions in semi-humid area . [Method] Different cultivation patterns of furrow-ridge mulching were designed using ordinary film, liquid film and straw and soil moisture, yield, water use efficiency and economic benefits of winter wheat were analyzed for three years. [ Result] When treated with ordinary film and straw dual-mulching, it had obvious effect of keeping moisture during the whole growth period of winter wheat, which could effectively improve the soil water utilization. In three years, the ordinary film and straw dual-mulching was the highest yield treatment among all treatments, followed by liquid film and straw dual-mulching treatment, the average of yield in three wheat production seasons, increased by 39.3%(P<0.05) and 29.4% (P<0.05) compared to conventional flat practice(CK1) respectively, and by 35.6%(P<0.05) and 25.9%(P<0.05) compared to the furrow-ridge no-mulching(CK2), respectively. The average of water use efficiency (WIFE) of the two increased by 39.6%(P<0.05) and 30.3%(P<0.O5) compared with CK,, respectively, and by 33.4%(P<0.05) and 24.5%(P<0.05) compared with CK2, respectively. The ordinary film and straw dual-mulching gained the highest economic benefit among all treatments and reached up to 4951.4 yuan/hm2 on average in three years, 1452.1 yuan/hm2 higherthan Cki, and 1416.5 yuan/hm2 higher than CK2, and was followed by the liquid film and straw dual-mulching, which compared toCK1 and CK2, both showed significant difference (P< 0.05). [Conclusion] Under furrow-ridge mulching cultivation conditions, the ordinary plastic film and straw dual-mulching and the liquid film and straw dual-mulching are efficient cultivation patterns for wheat in semi-humid area.关键词
冬小麦/沟垄覆盖方式/水分利用效率/产量/半湿润区Key words
winter wheat/ furrow-ridge mulching ways/ water use efficiency/ yield/ semi-humid area引用本文复制引用
李儒,崔荣美,贾志宽,韩清芳,路文涛,侯贤清..不同沟垄覆盖方式对冬小麦土壤水分及水分利用效率的影响[J].中国农业科学,2011,44(16):3312-3322,11.基金项目
国家“十一五”科技支撑计划(2006BAD29B03)、陕西省农业科技创新项目(2010NKC-03) （2006BAD29B03）
