干旱地区农业研究2017，Vol.35Issue(6)：1-9,9.DOI:10.7606/j.issn.1000-7601.2017.06.01
华北平原秸秆覆盖滴灌冬小麦中后期耗水规律研究
Research on the water consumption rule of winter wheat in middle and late stage by drip irrigation with straw-mulching in North China Plain
摘要
Abstract
Based on the field experiments of two consecutive years(2013—2015)in North China Plain(NCP),us-ing the Penman-Monteith Equation(P-M),FAO single crop coefficient method and water balance method,We re-searched and analyzed the influences of straw mulching and without mulching to the soil evaporation,water consumption, yield and water use efficiency(WUE)of winter wheat under full drip irrigation.The research results indicated that:The straw mulching under drip irrigation could notably restrained the daily soil evaporation and its fluctuation range(P<0.05)compared with no mulching,the daily evaporation could be reduced more than 30% in middle and late period of winter wheat.Based on the field measured stomatal resistance coefficient of winter wheat,using the P-M formula to di-rectly calculate the daily water consumption of winter wheat has possessed good accuracy.It has a high correlation with the calculated value by FAO single crop coefficient method(R2>0.8).Though the irrigation norm could be decreased about 7% ~15% by straw mulching with drip irrigation,compared with no mulching and drip irrigation,the daily water consumption and total water consumption during growth period did not existed significant difference.The daily water con-sumption of winter wheat was between 4.0 mm·d-1to 4.5 mm·d-1during April to June.The crop yield and WUE were not significantly increased under full drip irrigation with straw mulching(P>0.05).关键词
秸秆覆盖/滴灌/冬小麦/耗水量/产量/水分利用效率/华北平原Key words
straw mulching/drip irrigation/winter wheat/water consumption/yield of winter wheat/WUE/North China Plain分类
农业科技引用本文复制引用
王建东,赵月芬,张彦群,龚时宏,隋娟,晏清洪..华北平原秸秆覆盖滴灌冬小麦中后期耗水规律研究[J].干旱地区农业研究,2017,35(6):1-9,9.基金项目
国家"十二五"科技支撑计划课题(2014BAD12B05) （2014BAD12B05）
国家自然科学基金项目(51279211,51309250) （51279211,51309250）
