• ISSN 1008-505X
  • CN 11-3996/S
LIU Xue-song, WANG Yi-fei, SHI Yuan-fei, ZHANG Fang-bo, WU Meng-qi, TANG Xiao-yan, SHEN Jian-bo, JIN Ke-mo. Construction and regulation of soil structure in root zone based on the theory of rhizobiont[J]. Journal of Plant Nutrition and Fertilizers, 2023, 29(5): 972-979. DOI: 10.11674/zwyf.2022616
Citation: LIU Xue-song, WANG Yi-fei, SHI Yuan-fei, ZHANG Fang-bo, WU Meng-qi, TANG Xiao-yan, SHEN Jian-bo, JIN Ke-mo. Construction and regulation of soil structure in root zone based on the theory of rhizobiont[J]. Journal of Plant Nutrition and Fertilizers, 2023, 29(5): 972-979. DOI: 10.11674/zwyf.2022616

Construction and regulation of soil structure in root zone based on the theory of rhizobiont

  • In China, most agricultural soils have structural obstacles such as shallow plow layer, crust, and compaction, which seriously affect crop yields and threaten food security. Some methods such as deep plowing and deep loosening, application of organic fertilizer, returning straw to the field and adding biochar, are often used in modifying soil structure, and have resulted in obvious changes. However, the high cost and environmental risks brought about by these methods are not negligible. Recently, the biological potential of plant roots have caused concerns on their great potential to change soil pore characteristics through root growth and release of root exudates. As a “green” way to reduce soil barriers, root zone soil structure regulation has important theoretical and practical significance. Here, in this review, we summarize the characteristics of soil structure in the root zone, and the advantages and disadvantages of the existing measures to reduce soil structure barriers, and discuss the feasibility of exploring and strengthening root-soil interaction and using plant roots to reshape soil structure based on the theory of “Rhizobiont”. Specifically, we focus on the design and construction of ideal soil structure from the perspective of soil pores. Different diameters of soil pores correspond to different functions. By selecting plants with specific root phenotypes to reshape the soil pore network, and then construct an ideal root zone soil structure to realize the coupling of soil structure and function.
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