华北农学报Issue(z1)：280-283,4.DOI:10.7668/hbnxb.2014.S1.052
氮肥运筹对江淮麦区饲料大麦籽粒产量与品质的影响
Effects of Nitrogen Application Rates and Ratio on Grain Yield and Quality of Feed Barley in Jianghuai Wheat Region
摘要
Abstract
To provide a guideline for nitrogen fertilizer application in barley production in Jianghuai wheat re -gion,two barley cultivars Yanfeng No .1 and Yangsimai No .1 were used as experimental materials through two con-secutive years of 2012-2014 to study the effects of nitrogen fertilizer rates and ratios on grain yield and quality in barley .The results indicated the yields of Yanfeng No .1 and Yangsimai No .1 were improved by ratio of 16 .4%and 31.6%respectively with the increment of nitrogen application rates from A 1 (90 kg/ha) to A2 (210 kg/ha),while no significant discrepancies in yields were observed between treatments A 2 and A3 (330 kg/ha) .As for grain qual-ity,grain protein contents of Yanfeng No .1 and Yangsimai No.1 were increased with the range of 8.6%-10.2%and 8.8%-10.8% respectively,with the increment of nitrogen application rates from A1 to A2 ,while slight in-crease of grain protein contents was obtained with the increment of nitrogen application rates from A 2 to A3 .Starch contents appreciably decreased with the increment of nitrogen application rates .Both grain yield and quality presen-ted to be little affected by two different nitrogen ratios in this study .Correlation analysis between yield and agronom-ic traits showed number of spikes and panicles per spike might contribute to the improvement of yield under the con -dition of nitrogen fertilizer application .Based on analyses aforementioned , it is recommended that the optimum a-mount of nitrogen fertilizer in barley production should be 210 kg/ha followed by application ratios of 5∶2∶3 or 6∶2∶2 during sowing ,jointing and booting stages in Jianghuai wheat region .关键词
氮肥用量/氮肥运筹/饲料大麦/产量/品质Key words
Nitrogen fertilizer rates/Nitrogen fertilizer ratio/Feed barley/Yield/Quality分类
农业科技引用本文复制引用
陈晓东,赵斌,顾江涛,王瑞,季昌好..氮肥运筹对江淮麦区饲料大麦籽粒产量与品质的影响[J].华北农学报,2014,(z1):280-283,4.基金项目
现代农业产业技术体系建设专项 （）
