辽宁农业科学Issue(3)：15-18,4.DOI:10.3969/j.issn.1002-1728.2017.03.003
氮肥运筹对春玉米生长动态与产量及经济效益的影响
Effects of Nitrogen Application Regime on Growth Dynamics, Yield and Economical Benefit of Spring Maize
摘要
Abstract
A spring maize field experiment was carried out in Fu xin of Liaoning province to investigate the effects nitrogen application regime on growth dynamics,yield and economical benefit.The results show that reasonable postponing nitrogen application increased plant height and dry matter accumulation,with better leaf area index.The treatment of nitrogen topdressing twice which the nitrogen ratio is 1 to 6 to 3 has maximum production,economical benefit was 14 146 yuan/hm2,which the average yield increase was 16.9％,the income increase was 17.4％ and the input-output ratio increase was 0.1％ compared to nitrogen single fertilize.The way of single fertilization will be used more and more with the using of slow-release fertilizer,lower corn price and higher labour cost.关键词
玉米/产量/氮肥运筹/经济效益Key words
Maize/Yield/Nitrogen application regime/Eeconomical benefit分类
农业科技引用本文复制引用
董智,靖凯,邓林军,董俊,向午燕,侯志研..氮肥运筹对春玉米生长动态与产量及经济效益的影响[J].辽宁农业科学,2017,(3):15-18,4.基金项目
国家科技支撑计划项目(2013BAD07B03) （2013BAD07B03）
水体污染控制与治理专项(2015ZX07103-007). （2015ZX07103-007）
