摘要
盆栽条件下模拟油菜(Brassica napus L.)蕾薹-花期渍水,研究氮磷钾肥施用对渍水油菜产量和养分吸收的影响。结果表明,氮磷钾配施有利于增强油菜抗渍能力,促进油菜对养分的吸收,增加各器官干物质重,并提高了油菜收获指数和子粒中养分累积的比例,进而减轻了渍水带来的产量损失。氮磷钾三要素中对薹花期渍水油菜产量和养分吸收的作用效应为氮>磷>钾。
A Pot experiment was conducted to study the effects of nitrogen, phosphorus and potassium on yield and nutrient uptake of bud-blooming waterlogged rapeseed. The results indicated that combination of N, P, and K fertilizers enhanced waterlogging resistance of rapeseed, increased nutrient uptake,dry matter accumulation,harvest index and percentage of nutrient accumulation in seed,so as to reduce the yield loss caused by waterlogging. The influential sequence of NPK on rapeseed yield and nutrient uptake 〉were 〉NPK.
出处
《湖北农业科学》
2015年第20期4956-4959,共4页
Hubei Agricultural Sciences
基金
湿地生态与农业利用教育部工程研究中心开放基金项目(2013-09)
长江大学人才引进项目(RCYJ2013-21)
国家现代农业产业技术体系建设专项(CARS-13)
公益性行业(农业)专项(201203032)
