Journal of Integrative Agriculture ›› 2025, Vol. 24 ›› Issue (4): 1588-1605.DOI: 10.1016/j.jia.2024.07.035

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稻田冬种不同绿肥构建的丛枝菌根真菌群落促进了后作水稻生产

  

  • 收稿日期:2024-04-11 接受日期:2024-06-12 出版日期:2025-04-20 发布日期:2025-03-18

The communities of arbuscular mycorrhizal fungi established by different winter green manures in paddy fields promote post-cropping rice production

Mengyan Cao1, Shaoping Ye2, Cheng Jin1, Junkang Cheng1, Yao Xiang1, Yu Song1, Guorong Xin1#, Chuntao He1#   

  1. 1 State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Plant Stress Biology/School of Agriculture and Biotechnology, Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, China

    2 Guangzhou Institute of Forestry and Landscape Architecture, Guangzhou 510405, China

  • Received:2024-04-11 Accepted:2024-06-12 Online:2025-04-20 Published:2025-03-18
  • About author:Mengyan Cao, E-mail: caomy8@mail2.sysu.edu.cn; #Correspondence Guorong Xin, Tel: +86-755-23260250, E-mail: lssxgr@mail.sysu.edu.cn; Chuntao He, Tel: +86-755-23260250, E-mail: hecht3@mail.sysu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (32171683), the Shenzhen Science and Technology Program, China (JCYJ20220530145606015), the Agricultural and Social Development Project of Guangzhou Municipal Science and Technology Bureau, China (202206010058), the Special Fund for Agro-scientific Research in the Public Interest of China (201503122), the Natural Science Foundation of Guangdong Province, China (2020A1515010494), the Yangfan Innovative & Entrepreneurial Research Team Project, China (2015YT02H032), and the Zhang Hong-da Science Research Fund of Sun Yat-sen University, China.

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摘要：

南方稻田冬季种植绿肥可通过构建微生物群落有效改善土壤性状和水稻产量。然而，不同冬种绿肥土壤中丛枝菌根真菌（Arbuscular mycorrhizal fungi，AMF)群落对土壤性状和水稻产量的影响尚不清楚。本研究探讨了冬闲、冬种黑麦草和冬种紫云英三种常见的华南地区冬季种植模式下稻田土壤AMF群落对后作水稻生产的影响。与冬闲相比，冬种黑麦草和冬种紫云英能缓解土壤酸化，显著增加土壤AMF孢子密度，改善土壤AMF群落结构。在灭菌土壤中，与未接种AMF孢子的处理相比，接种冬种紫云英土壤AMF孢子后的水稻千粒重、理论产量、稻米直链淀粉和总糖含量等指标提高了6.68-53.57%；接种冬种黑麦草土壤中AMF孢子后的水稻穗重、结实率和理论产量提高了15.38-22.71%，稻米蛋白质、直链淀粉和总糖含量分别为14.92、104.82和802.23 mg kg-1，比未接种AMF孢子的处理分别高出31.31、14.25和34.47%。冬种紫云英土壤中的AMF优势属无梗囊霉属（Acaulospora）和球囊霉属（Glomus）对水稻产量的提高有更积极的作用。而冬种黑麦草土壤中的AMF优势属球囊霉属（Glomus）更有利于稻米品质的提高。研究结果揭示了冬种绿肥土壤AMF群落对水稻生产的关键作用，为促进南方冬季农业的可持续发展奠定了理论基础。

Abstract:

Winter planting green manures in southern China effectively improve soil properties and rice production through microbial community construction.  However, the effects of soil communities of arbuscular mycorrhizal fungi (AMF) from different winter planting green manures on the soil properties and post-cropping rice production remain unclear.  In this study, the soil AMF communities of three common winter planting patterns in southern China, winter fallow, winter ryegrass (Lolium multiflorum L.), and winter Chinese milk vetch (Astragalus sinicus L.), were explored and their effects on post-cropping rice production were investigated.  Compared with winter fallow, the winter ryegrass and winter Chinese milk vetch patterns could alleviate soil acidification, significantly increase soil AMF spore density, and improve the soil AMF community structure.  Based on sterilized soil, rice production indicators such as thousand-seed weight, theoretical yield, and the grain amylose and total sugar contents of rice inoculated with AMF spores from winter Chinese milk vetch soil were 6.68–53.57% higher than those without AMF inoculation.  Rice panicle weight, seed setting rate, and theoretical yield were 15.38–22.71% higher in the treatment with AMF spores from winter ryegrass soil than in the treatments with no AMF inoculation.  In addition, the protein, amylose, and total sugar contents of rice grains were 14.92, 104.82, and 802.23 mg kg–1, respectively, which were 31.31, 14.25 and 34.47% higher than those without AMF inoculation.  The AMF community dominated by Glomus and Acaulospora in winter Chinese milk vetch had a more positive effect on the improvement of rice yield, while the AMF community dominated by Glomus in winter ryegrass soil was more conducive to rice quality improvement.  These findings have revealed the critical role of AMF communities from green manure in rice production, which lays the theoretical basis for a promising strategy to promote the sustainable development of southern winter agriculture.


Key words: green manure , paddy crop rotation ,  AMF community ,  rice yields ,  rice quality