[1]付三雄,周晓婴,张 维,等.种植密度和施氮量对油菜产量、品质及机收性状的影响[J].江苏农业学报,2016,(03):548.[doi:10.3969/j.issn.1000-4440.2016.03.010]
　FU San-xiong,ZHOU Xiao-ying,ZHANG Wei,et al.Influences of planting density and nitrogen application rate on yield and quality and mechine harvest traits of rapeseed(Brassica napus L.)[J].,2016,(03):548.[doi:10.3969/j.issn.1000-4440.2016.03.010]
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种植密度和施氮量对油菜产量、品质及机收性状的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2016年03期
页码:
548
栏目:
耕作栽培·资源环境
出版日期:
2016-06-30

文章信息/Info

Title:
Influences of planting density and nitrogen application rate on yield and quality and mechine harvest traits of rapeseed(Brassica napus L.)
作者:
付三雄;  周晓婴;  张 维;  陈 锋;  高建芹;  张洁夫;  戚存扣
国家油菜改良中心南京分中心,农业部长江下游棉花与油菜重点实验室(南京),江苏省农业科学院经济作物研究所,江苏 南京 210014
Author(s):
FU San-xiong;  ZHOU Xiao-ying;  ZHANG Wei;  CHEN Feng;  GAO Jian-qin;  ZHANG Jie-fu; QI Cun-kou
Nanjing Sub-center 〈Rapeseed〉 of National Center of Oilseeds Crop Improvement/Key Laboratory of Cotton and Rapeseed 〈Nanjing〉, Ministry of Agriculture/Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
关键词:
油菜;  施氮量;  种植密度;  产量;  品质
Keywords:
rapeseed;  nitrogen application rate;  planting density;  yield;  quality
分类号:
S565.4
DOI:
10.3969/j.issn.1000-4440.2016.03.010
文献标志码:
A
摘要:
为研究施氮量与种植密度对油菜机收性状及产量和品质的影响,以宁油20号为试验材料,设置施纯氮量240 kg/hm2、300 kg/hm2、360 kg/hm2,以及种植密度1 hm2 3.00×105 株、3.75×105 株、4.50×105 株、5.25×105 株、6.00×105 株不同处理。结果表明,高施氮量能获得最高的籽粒产量与产油量,但籽粒产量的增加幅度大于产油量,产油量在不同施氮量间差异不显著。改变施氮量与种植密度对经济性状、产量构成因素均可产生显著影响,其中密度间差异对主要经济性状的影响超过施氮量的差异,施氮量差异对产量构成因素的影响超过密度间差异。随施氮量增加含油量和硫苷含量下降。籽粒脂肪酸组成比较稳定,但芥酸含量随施氮量增大而增加; 油酸含量随施氮量增大而降低。株高随施氮量增加升高不明显,随密度增加而降低; 低氮量高密度种植能获得较高分枝点高度; 分枝数随施氮量减少而减少,随密度增大而减少。因此,若以减少施肥、节本增效为前提,选择施纯氮240 kg/hm2,并且在1 hm2 3.00×105～6.00×105株范围内提高密度,有利于获得高产油量和机收性状的形成。
Abstract:
The effects of application amounts of nitrogen and planting density on yield and quality of rape cultivar Ningyou20 were studied by setting three nitrogen levels(240 kg/hm2, 300 kg/hm2 and 360 kg/hm2)and five planting densities in 1 hm2(3.00×105 plants, 3.75×105 plants, 4.50×105 plants, 5.25×105 plants, 6.00×105 plants). The results showed that the high nitrogel level resulted in high grain yield and oil yield of rapeseed, and the increment in grain yield was greater than that in oil yield. The changes of economic traits caused by planting densities was greater than those by nitrogen rates, while the changes of yield components caused by different nitrogen rates was larger than those by planting densities. A fall in the content of oil and glucosinolate in rapeseed followed the increase in nitrogen application rates. Increased nitrogen levels also led to elevated seed erucic acid content and declined oleic acid content. Fatty acid content in seeds stayed stable. Increased planting density caused shorter plant and less number of branching. High planting density and low nitrogen application level led to high branching. Taken together, the rapeseed applied with nitrogen at 240 kg/hm2 and planted at the density of 3.00×105—6.00×105 plants per hectare could be harvested by machine and achieve high oil yield.

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备注/Memo

备注/Memo:
收稿日期:2015-11-04
基金项目:国家自然科学基金项目(31571710); 国家油菜产业技术体系建设专项(CARS-13)
作者简介::付三雄(1976-),男,湖北汉川人,博士,副研究员,研究方向为油菜遗传育种。(Tel)025-84390368;(E-mail)naufsx@163.com
更新日期/Last Update: 2016-06-30