浙江农业科学 ›› 2026, Vol. 67 ›› Issue (7): 1796-1800.DOI: 10.16178/j.issn.0528-9017.20250719

• 资源与环境 • 上一篇    下一篇

播种量及根瘤菌接种对紫云英产量与土壤培肥效应的影响

周苗1(), 蔡玮1, 徐洁章2, 刘晓霞1, 林宝义1()   

  1. 1.浙江省耕地质量与肥料管理总站,浙江 杭州 310020
    2.永康市耕地质量服务中心,浙江 永康 321300
  • 收稿日期:2025-10-03 出版日期:2026-07-11 发布日期:2026-07-27
  • 通讯作者: 林宝义
  • 作者简介:林宝义,E-mail:zjlinby2024@163.com
    周苗,主要从事耕肥技术推广工作 。E-mail:zhoumiao@zju.edu.cn
  • 基金资助:
    浙江省“三农九方”科技协作计划项目(2025SNJF018)

Effects of seeding rate and rhizobium inoculation on yield and soil fertility enhancement inChinese milk vetch(Astragalus sinicus L.)

ZHOU Miao1(), CAI Wei1, XU Jiezhang2, LIU Xiaoxia1, LIN Baoyi1()   

  1. 1.Cultivated Land Quality and Fertilizer Administration Station of Zhejiang Province,Hangzhou 310020,Zhejiang
    2.Yongkang Cultivated Land Quality Service Center,Yongkang 321300,Zhejiang
  • Received:2025-10-03 Online:2026-07-11 Published:2026-07-27
  • Contact: LIN Baoyi

摘要:

紫云英作为南方稻区重要的绿肥作物,其产量与培肥效应受播种量与根瘤菌接种等关键农艺措施的显著影响。本研究在浙江省典型稻区开展独立田间试验,结果表明,当每667 m2播种量为1.5~2.5 kg时,紫云英鲜草产量均稳定在1 500 kg以上,且土壤有机质、全氮、有效磷和速效钾含量显著(p0.05)提升,然而,增加播种量并未促成进一步的产量提升。根瘤菌接种可显著促进植株生长与养分积累,使浙江宁波大桥种和江西余江大叶种的鲜草产量分别提高18.97%和28.24%,根瘤数量增加42.96%和47.96%,植株氮、磷、钾含量显著提升,并进一步增强了还田后的土壤培肥效果。综上,紫云英生产推荐采用每667 m2 1.5~2.0 kg的播种量并结合根瘤菌接种,以实现高产与培肥的协同提升,为南方稻区绿肥高效利用提供技术支撑。

关键词: 紫云英, 播种量, 根瘤菌, 产量, 土壤培肥

Abstract:

Chinese milk vetch(Astragalus sinicus L.),as an important green manure crop in southern rice-growing regions,exhibits significant variations in yield and soil improvement effects under key agronomic practices such as seeding rate and rhizobium inoculation. Independent field experiments conducted in typical rice-growing areas of Zhejiang Province demonstrated that when the seeding rate was maintained within 1.5-2.5 kg per 667 m2,the fresh grass yield of Chinese milk vetch remained stable above 1 500 kg per 667 m2,with significant (p0.05) enhancements in soil organic matter,total nitrogen,available phosphorus,and available potassium contents. However,increasing the seeding rate to 2.5 kg per 667 m2 provided no additional yield benefits. Rhizobium inoculation significantly promoted plant growth and nutrient accumulation,increasing fresh grass yield by 18.97% and 28.24% for Zhejiang Ningbo Daqiao and Jiangxi Yujiang Daye varieties, respectively,while raising nodule numbers by 42.96% and 47.96%, respectively. The inoculated plants showed significantly improved nitrogen,phosphorus,and potassium contents,further enhancing soil fertility after incorporation. In conclusion,combining a seeding rate of 1.5-2.0 kg per 667 m2 with rhizobium inoculation was recommended for Chinese milk vetchproduction to achieve synergistic improvement in both yield and soil fertility,providing technical support for efficient green manure utilization in southern rice-growing regions.

Key words: Chinese milk vetch(Astragalus sinicus L.), seeding rate, rhizobium inoculation, yield, improvement of soil fertility

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