灌溉排水学报2017，Vol.36Issue(1)：52-56,84,6.DOI:10.13522/j.cnki.ggps.2017.01.009
泾惠渠灌区冬小麦夏玉米连作需水量及灌水模式研究
Water Requirement and Irrigation Schedule of Winter Wheat and Summer Maize in Jinghuiqu Irrigation District
摘要
Abstract
In order to seek efficient water-saving irrigation mode under continuous wheat-maize cropping system,field plot trials during continuous cropping patterns were used,by reducing irrigation frequency,the average yield under traditional irrigation system was subjected to comparative.The results indicated that approximate water requirement of winter wheat and summer maize in Jinghuiqu was 410 mm and 400 mm.When the rainfall was 490 mm,planting economic irrigation quota was 305 mm in the whole year,and irrigation volume could be reduced by 8.9％.Under the continuous wheat-maize cropping system,the whole crop yield was 12 010 kg/hm2,increased by 6.2％ compared with monoculture.By reducing irrigation in wheat returning green stage and maize sowing stage,water use efficiency could be improved on the basis of yield,which was the better continuous irrigation mode.关键词
冬小麦/夏玉米/需水量/产量/灌溉定额Key words
winter wheat/summer maize/water requirement/yield/irrigation quota分类
农业科技引用本文复制引用
宋同,蔡焕杰,徐家屯..泾惠渠灌区冬小麦夏玉米连作需水量及灌水模式研究[J].灌溉排水学报,2017,36(1):52-56,84,6.基金项目
“十二五”国家科技支撑计划项目(2011BAD29B01) （2011BAD29B01）
国家自然科学基金项目(51179162) （51179162）
高等学校学科创新引智计划项目(B12007) （B12007）
