浙江农业学报2025，Vol.37Issue(5)：998-1008,11.DOI:10.3969/j.issn.1004-1524.20240387
高、低含油量油菜品种的产量、品质和氮利用效率对施氮量的响应差异
Differential responses of yield,quality,and nitrogen use efficiency to nitrogen application rate in high-and low-oil content rapeseed varieties
摘要
Abstract
To compare the differences in yield,quality,and nitrogen use efficiency(NUE)responses to nitrogen(N)application rate between high-and low-oil content rapeseed varieties,a field experiment was conducted using high-oil content variety E01 and low-oil content variety E08.Five N treatments(N0,N60,N180,N240,N360,re-presenting 0,60,180,240,and 360 kg·hm-2 of pure N,respectively)were applied.Yield,total nitrogen content,oil content,and related indicators were measured at maturity,and NUE and oil yield were calculated.The results showed that the yield and NUE-related parameters of E01 were significantly higher than those of E08.Although N ap-plication significantly reduced the seed oil content of the high-oil content variety E01,the yield-enhancing effect of N on E01 far outweighed its inhibitory effect on oil content,resulting in significantly higher oil yield and protein yield in E01 compared to E08.Additionally,the maximum oil yields of 1 316 kg·hm-2 and 602 kg·hm-2 were achieved for E01 and E08 at N application rates of 245 kg·hm-2 and 227 kg·hm-2,respectively.Comprehensive analysis indica-ted that under the same N application rate,the high-oil content variety E01 exhibited higher oil yield and NUE,dem-onstrating greater potential for high efficiency nitrogen utilization in rapeseed production.关键词
甘蓝型油菜/施肥量/产量/产油量/氮利用效率Key words
Brassica napus L./fertilization amount/yield/oil yield/nitrogen use efficiency分类
农业科技引用本文复制引用
董智超,岳宁燕,吕魏,余晓燚,郑凯文,宋海星,陈海飞..高、低含油量油菜品种的产量、品质和氮利用效率对施氮量的响应差异[J].浙江农业学报,2025,37(5):998-1008,11.基金项目
湖南省教育厅重点项目(22A0157) （22A0157）
