作物学报2016，Vol.42Issue(5)：725-733,9.DOI:10.3724/SP.J.1006.2016.00725
微喷灌模式下冬小麦产量和水分利用特性
Grain Yield and Water Use Characteristics of Winter Wheat under Micro- sprinkler Irrigation
摘要
Abstract
The objective of this study was to establish the water-saving and high-yield irrigation system using micro-sprinkler in winter wheat in North China Plain. A two-yield experiment was carried out in the same field in 2012-2013 (normal precipitation) and 2013-2014 (dry year) wheat growing seasons to compare the effects of different irrigation amounts in micro-sprinkler and furrow irrigation modes on wheat population, leaf area index, grain yield, water use efficiency, and water consumption. The total water amount in micro-sprinkler mode ranged from 60 to 180 mm in 2-6 irrigations and the total water amount in furrow irriga-tion mode ranged from 74 to 229 mm in 1-3 irrigations. In the 2012-2013 growing season, the average wheat yield of mi-cro-sprinkler irrigation was 5.6% higher than that of furrow irrigation, and the highest yield was obtained under micro-sprinkler irrigation of 120 mm. Yield increased significantly in the micro-sprinkler treatment than in the furrow irrigation treatment when water amount≤90 mm, but decreased significantly when the water amount was larger than 150 mm. In the 2013-2014 growing season, the average yield of micro-sprinkler irrigation was 0.8% higher than that of furrow irrigation, and the highest yield was obtained under micro-sprinkler irrigation of 150 mm. Thousand-grain weight and water use efficiency under micro-sprinkler irri-gation were also higher than those under furrow irrigation, and the increased rations were 5.1% and 8.7% in 2012-2013 growing season and 7.9% and 10.7% in 2013-2014 growing season, respectively. We recommend that winter wheat production with mi-cro-sprinkler under the similar condition of this experiment should be irrigated with water amount of 90-120 mm and water con-sumption of 325-355 mm in normal precipitation year and with water amount of 105-150 mm (30-45 mm for each irrigation) and water consumption of 335-380 mm in dry year. Compared with furrow irrigation, micro-sprinkler irrigation has the water-saving potential of 20-50 mm in normal year and 70-110 mm in dry year at the same yield level.关键词
冬小麦/微喷灌/畦灌/产量/水分利用效率Key words
Winter wheat/Micro-sprinkler irrigation/Furrow irrigation/Yield/Water use efficiency引用本文复制引用
董志强,张丽华,李谦,吕丽华,申海平,崔永增,梁双波,贾秀领..微喷灌模式下冬小麦产量和水分利用特性[J].作物学报,2016,42(5):725-733,9.基金项目
本研究由国家公益性行业(农业)科研专项(201303133-1-1, 201203100),河北省自然科学基金项目(C2014301007)和河北省渤海粮仓科技示范工程专项资助. This study was supported by the National Special Fund for Agro-Scientific Research in the Public Interests (201303133-1-1, 201203100), the Natural Science Foundation of Hebei Province, China (C2014301007) and Hebei Provincial Special Fund for Building up Bohai Grain-Store" of Hebei Province. （农业）
