作物研究2017，Vol.31Issue(2)：125-129,5.DOI:10.16848/j.cnki.issn.1001-5280.2017.02.06
不同用量包膜肥对油菜氮素吸收和产量的影响
Effects of Different Rates of Coated Fertilizer on Nitrogen Absorption and Yield of Oilseed Rape
摘要
Abstract
A field experiment was conducted to investigate the effects of coated fertilizer on the grain yield and nitrogen absorption of oilseed rape.The oilseed rape ‘ Xiangzayou 1613’ was grown under five different fertilizer rates of 3750,3000,2250,1500 and 750 kg/hm2 respectively.The results showed that the oilseed yield and oil production were increased significantly.When couted fertilizer applied.When the coated fertilizer rate was 1500 kg/hm2,the highest oilseed yield and oil yield were 2066.9 kg/hm2 and 848.1 kg/hm2 respectively.The results of model calculation indicated that the rate coated fertilizer at 1611.0 kg/hm2,the oilseed yield may increase to the highest at 2164.9 kg/hm2,increased oilseed yield by 13.6％;and the fertilizer rate may decrease by 13.9％.At the same application rate of coated fertilizer,the rape nitrogen metabolism was more active.The total amounts of nitrogen accumulation and free amino acids were relatively higher,the nitrogen absorption efficiency was significantly improved.关键词
油菜/施肥/包膜肥/氮素吸收/产量Key words
oilseed rape/fertilization/coated fertilizer/nitrogen absorption/yield分类
农业科技引用本文复制引用
荣楠,宋海星,杨勇..不同用量包膜肥对油菜氮素吸收和产量的影响[J].作物研究,2017,31(2):125-129,5.基金项目
国家支撑计划项目(2014BAC09B01-01,2014BAD14B01,2012BAD15B04). （2014BAC09B01-01,2014BAD14B01,2012BAD15B04）
