冬小麦生长发育的适宜土壤含水量  

Study on Reasonable Soil Moisture Indexes of Growth and Development for Winter Wheat

作　　者：方文松[1,2] 刘荣花[1,2] 邓天宏[1,3] 

机构地区：[1]中国气象局农业气象保障与应用技术重点开放实验室,郑州450003 [2]河南省气象科学研究所,郑州450003 [3]河南省气象局,郑州450003

出　　处：《中国农业气象》2010年第S1期73-76,共4页Chinese Journal of Agrometeorology

基　　金：中国气象局气象新技术推广项目(CMATG2008M43);国家自然科学基金面上项目(40875071)

摘　　要：土壤水分对作物生长发育和产量的影响,在生育过程中具体表现在生长状况和生长量变化上。为了确定冬小麦不同生育期正常生长发育的土壤水分指标,利用河南省气象科学研究所郑州试验基地多年(1994-1996年和1997-1998年)试验资料,将冬小麦不同发育时期的生长状况和生长量测定资料与此发育期前一时段的土壤水分状况进行统计分析,建立土壤水分与产量性状和产量的相关关系,并运用数学方法,以获得较好生长状况和取得较高产量为目的确定冬小麦不同发育期的适宜水分指标,从而为冬小麦干旱风险动态评估模型研究奠定基础。Effect of soil moisture on crop growth and yield were performed on the variation of crop growth conditions and biomass growth.In order to achieve soil moisture indexes for normal growing wheat during its different growth/development phases,field experimental data of Zhengzhou test site of Henan Institute of Meteorological Science from 1994 to 1996 and 1997 to 1998 were used in this paper.Statistical analyses were carried out between observed information of growth condition as well as biomass increase in current stage and soil moisture conditions in previous stage,then the relationships between soil moisture,yield components and yield were established.By using mathematical methods,appropriate soil moisture indexes were determined which aimed at relative better growth and higher yield respectively.The results would provide basis for establishing dynamic evaluation models on evaluating drought risk of winter wheat.

关 键 词：冬小麦 生长状况 产量性状 土壤水分 指标 

分 类 号：S512.11[农业科学—作物学]