浙江农业科学 ›› 2026, Vol. 67 ›› Issue (6): 1438-1442.DOI: 10.16178/j.issn.0528-9017.20250318

• 粮食作物 • 上一篇    下一篇

尿素侧深施对双季稻产量及氮肥利用率的影响

杨海琴1(), 叶挺云2(), 胡泽凡2, 麻理亚2, 陈照明3   

  1. 1.瑞安市湖岭镇农业农村工作办公室,浙江 瑞安 325213
    2.瑞安市农业农村局,浙江 瑞安 325200
    3.浙江省农业科学院 环境资源与土壤肥料研究所,浙江 杭州 310021
  • 收稿日期:2025-04-30 出版日期:2026-06-11 发布日期:2026-06-12
  • 通讯作者: 叶挺云
  • 作者简介:叶挺云,E-mail:715040949@qq.com
    杨海琴,从事农业技术推广等方面的工作。E-mail:550907797@qq.com
  • 基金资助:
    浙江省“尖兵”“领雁”科技计划项目(2023C2015);浙江省“尖兵”“领雁”科技计划项目(2023C2005)

Effect of side-deep application of urea on yield and nitrogen use efficiency of double-season rice

YANG Haiqin1(), YE Tingyun2(), HU Zefan2, MA Liya2, CHEN Zhaoming3   

  1. 1.Agricultural and Rural Affairs Office of Huling Town,Rui’an City,Rui’an 325213,Zhejiang
    2.Rui’an Municipal Bureau of Agriculture and Rural Affairs,Rui’an 325200,Zhejiang
    3.Institute of Soil,Fertilizer and Environmental Resources,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021,Zhejiang
  • Received:2025-04-30 Online:2026-06-11 Published:2026-06-12
  • Contact: YE Tingyun

摘要:

为探讨尿素侧深施用对双季稻产量及氮肥利用率的影响,并为浙南地区双季稻氮肥高效利用提供理论依据,开展了田间试验。试验设置4个处理:1)不施氮肥(CK);2)常规施肥(CF);3)尿素侧深施用(UD1);4)尿素减氮10%侧深施用(UD2)。结果表明,与CK处理相比,施用氮肥使早稻和晚稻分别显著(p<0.05)增产31.7%~41.6%和42.9%~47.9%;与CF处理相比,尿素侧深施用显著提高了早稻产量;而UD1和UD2处理间的双季稻产量无显著差异。尿素侧深施用处理下,早稻和晚稻的籽粒吸氮量和总吸氮量均显著高于CF处理。与CF处理相比,尿素侧深施用显著提高了早稻的氮肥表观利用率和贡献率,以及晚稻的氮肥表观利用率;此外,UD2处理还显著提高了早稻的氮肥农学效率、偏生产力,以及晚稻的氮肥偏生产力。因此,在浙南地区双季稻生产中,采用尿素侧深施肥技术可实现水稻高产稳产、氮肥高效利用。

关键词: 双季稻, 氮肥, 产量, 氮素吸收, 氮肥利用率

Abstract:

A field experiment was conducted to investigate the effects of urea side-deep application on the yield and nitrogen use efficiency of double-season rice,and to provide a theoretical basis for efficient nitrogen fertilizer utilization in double-season rice production in southern Zhejiang Province. Four treatments were established:1)no nitrogen fertilizer(CK);2)conventional fertilization(CF);3)urea side-deep application(UD1);4)urea side-deep application with 10% nitrogen reduction(UD2). The results showed that compared with the CK treatment,nitrogen fertilization significantly (p<0.05)increased the yield of early-season rice and late-season rice by 31.7%-41.6% and 42.9%-47.9%,respectively. Compared with the CF treatment,urea side-deep application significantly increased the yield of early-season rice,while no significant difference in double-season rice yield was observed between the UD1 and UD2 treatments. Under urea side-deep application treatments,both grain nitrogen uptake and total nitrogen uptake of early-season and late-season rice were significantly higher than those under the CF treatment. Compared with the CF treatment,urea side-deep application significantly increased the apparent nitrogen use efficiency and nitrogen contribution rate of early-season rice,as well as the apparent nitrogen use efficiency of late-season rice. In addition,the UD2 treatment significantly increased the agronomic efficiency and partial factor productivity of nitrogen fertilizer for early-season rice,and the partial factor productivity of nitrogen fertilizer for late-season rice. Therefore,the adoption of urea side-deep fertilization technology in double-season rice production in southern Zhejiang Province can achieve the goals of high and stable rice yield and efficient nitrogen fertilizer utilization.

Key words: double-season rice, nitrogen fertilizer, yield, nitrogen uptake, nitrogen use efficiency

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