灌溉排水学报2012，Vol.31Issue(3)：78-82,5.
拔节孕穗和抽穗开花期控制灌溉对水稻生长的影响
Effects of Controlled Irrigation on Rice Growth and Yield in Jointing-Booting and Flowering Stage
摘要
Abstract
In order to apply the controlled irrigation technique for rice more reasonably,the effect of controlled irrigation in a single growing stage on rice growth and yield was studied.Water control was launched in jointing-booting stage and flowering stage respectively,and in each stage,three lower limit of soil water content（70%,80%,and 90%,respectively） was controlled.The results showed that compared to check treatment,water control at jointing-booting stage did not apparently change effective panicle number per hole and 1000-grain weight;grains per panicle and filled grain number per panicle decreased significantly while yield had a slightly decreasing tendency;water control at flowering stage had little effect on rice growth and yield,changes of physiological indexes were insignificant.Controlled irrigation applied at jointing-booting stage saved more irrigation than that conducted at flowering stage,but controlled irrigation at flowering stage could get higher irrigation water use efficiency.Therefore,small control at jointing-booting stage and big control at flowering stage would be beneficial to water saving and increasing yield.关键词
控制灌溉/水稻生育性状/产量/水分生产效率/关键生育期/灌溉制度Key words
controlled irrigation/rice growing character/yield/water use efficiency/critical growing stage/irrigation system分类
农业科技引用本文复制引用
葛岩,窦超银,魏丹,褚丽妹,杨磊,王海兵..拔节孕穗和抽穗开花期控制灌溉对水稻生长的影响[J].灌溉排水学报,2012,31(3):78-82,5.基金项目
水利部公益性行业科研专项经费项目 （）
辽宁省农业科技攻关项目 （）
