浙江农业科学

浙江农业科学 ›› 2025, Vol. 66 ›› Issue (2): 318-320.DOI: 10.16178/j.issn.0528-9017.20240101

• 经济作物 • 上一篇    下一篇

苗肥用量对稻茬直播油菜农艺性状和产量的影响

吴美娟1(), 黄洪明1, 汪暖1, 邵庭1, 蒋红旗2   

  1. 1.兰溪市农业技术推广中心,浙江 兰溪 321100
    2.兰溪市赤溪街道办事处,浙江 兰溪 321100
  • 收稿日期:2024-02-02 出版日期:2025-02-11 发布日期:2025-03-24
  • 作者简介:吴美娟(1965—),女,浙江兰溪人,推广研究员,本科,从事粮油技术推广工作,E-mail:Wmj737@163.com。
  • 基金资助:
    浙江省农业产业技术团队项目(2020—2021年)

Effect of seedling fertilizer application on agronomic traits and yield of direct seedling Brassica napus L. in paddy rice field

WU Meijuan1(), HUANG Hongming1, WANG Nuan1, SHAO Ting1, JIANG Hongqi2   

  1. 1. Agricultural Technology Extension Center of Lanxi City, Lanxi 321100, Zhejiang
    2. Chixi Sub-district Office of Lanxi Municipal People's Government, Lanxi 321100, Zhejiang
  • Received:2024-02-02 Online:2025-02-11 Published:2025-03-24

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摘要： 文章以浙油505为供试品种,研究增施苗肥对稻茬直播油菜农艺性状和产量的影响。结果表明,随着苗期氮肥用量的增加,生育期有不同程度的延迟,植株高度、单株一次分枝数相应增高,单株角果数随着苗肥用量增加呈先增后减的趋势,每角粒数差异不大,千粒重随着苗肥用量增加而增加。产量表现为先明显增加再基本平缓后降低的趋势,油菜籽含油量随着苗肥用量的增加呈下降趋势,以总纯氮量204.75 kg·hm-2、苗肥施尿素(N 46%)225 kg·hm-2的条件下,油菜产量、品质等方面最优。

关键词: 苗肥, 直播, 油菜, 性状, 产量

Abstract:

To study on the effects of seedling fertilizer application on the agronomic traits and yield of direct seedling Brassica napus L. in paddy rice field,this study used Zheyou 505 as test variety.The results showed that the growth period was delayed to varying degrees, the plant height and number of branches per plant increased accordingly with the increase of nitrogen fertilizer application during the seedling stage. The number of pods per plant showed a trend of first increasing and then decreasing with the increase of seedling fertilizer application, the difference in number of seeds per pod was not significant, and the weight of 1 000 grains increased with the increase of seedling fertilizer application. The yield performance showed a significant increase followed by a basic plateau and then a decrease. The oil content of rapeseed decreased with the increase of seedling fertilizer application. The application rate using about 204.75 kg·hm-2 total nitrogen and 225 kg·hm-2 urea (N 46%) provided the best yield and quality of Brassica napus L..

Key words: seedling fertilizer, direct seedling, Brassica napus L., traits, yield

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