核农学报2012，Vol.26Issue(8)：1183-1189,1203,8.
施肥水平对冬大麦干物质和氮素积累与转运的影响
EFFECTS OF NITROGEN APPLICATION RATES ON DRY MATTER,NITROGEN ACCUMULATION AND TRANSFORMATION IN BARLEY
摘要
Abstract
Four winter barley cultivars,Yangsimai 3,Gangpi 1,Yangnongpi 2 and Frankin were used to study the characteristic of dry matter and nitrogen accumulation,transformation and contribution to grains in different nitrogen application rates(0,90,180 and 270kg/hm2).The results showed that responses to the increase of N rate the dry matter accumulation preanthesis was increasing,and the rate of dry matter accumulation and its contribution to grains were decreasing.The transformation amount of organs showed an increasing trend within the NM treatment(180kg/hm2),but a decreasing trend higher than NM.The N accumulation pre-anthesis and transformation amount were increasing,and N accumulation rate pre-anthesis,transformation rate and contribution rate to grains were decreasing.The stem dry matter transformation amount and contribution rate to grains were the largest,and rachis+hulls transformation rate were the largest.The leaf N transformation amount and contribution rate to grains were the largest,and rachis+hulls transformation rate were the largest.The relationship between nitrogen application rate and yield was a quadratic,and N accumulation amount were significantly positive linear relationship.Under the experimental conditions,the best fertilizer range were 212.42~261.97kg/hm2 relative to the maximum yield in barley.关键词
大麦/干物质/氮素/积累/转运Key words
barley/dry matter/nitrogen/accumulation/transformation分类
农业科技引用本文复制引用
徐寿军,包海柱,张凤英,刘志萍,杨恒山,许如根,庄恒扬..施肥水平对冬大麦干物质和氮素积累与转运的影响[J].核农学报,2012,26(8):1183-1189,1203,8.基金项目
国家“863”计划项目[2001AA245041,2003（138）] （）
农业部大麦现代农业产业技术体系建设项目 （）
内蒙古民族大学创新团队建设计划项目 （）
