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  1. Home
  3. Effects Of Microbial Communities During The Cultivation Of Three Salt-tolerant Plants In Saline-alkali Land Improvement.
  1. Home
  3. Effects Of Microbial Communities During The Cultivation Of Three Salt-tolerant Plants In Saline-alkali Land Improvement.

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Effects of microbial communities during the cultivation of three salt-tolerant plants in saline-alkali land

Yijun Wang1,2,3, Huarui Gong4, Zongxiao Zhang5

  • 1State Key Laboratory of Nutrient Use and Management, Shandong Academy of Agricultural Sciences, Jinan, China.

Frontiers in Microbiology
|November 15, 2024

View abstract on PubMed

Summary
This summary is machine-generated.

Planting salt-tolerant vegetation like chicory, alfalfa, and tall wheatgrass improves severely saline-alkaline soils. These plants enhance soil nutrients and microbial communities, boosting soil health and sustainability.

Keywords:
agriculturealfalfachicoryseverely saline–alkaline soilsoil quality assessmenttall wheatgrass

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Area of Science:

  • Soil Science
  • Microbiology
  • Agronomy

Background:

  • Saline-alkaline lands pose challenges to soil fertility and sustainability.
  • Salt-tolerant vegetation can improve soil conditions by interacting with soil microorganisms.
  • Understanding these microbial interactions is crucial for land reclamation.

Purpose of the Study:

  • To investigate the effects of cultivating three salt-tolerant plant species on microbial communities in severely saline-alkaline soils.
  • To compare the efficacy of tall wheatgrass, chicory, and alfalfa in improving soil quality over four years.
  • To assess the relationship between microbial community structure and soil health indicators.

Main Methods:

  • Field study over 4 years comparing three salt-tolerant plants (tall wheatgrass, chicory, alfalfa) with a non-cultivated control.
  • High-throughput sequencing of 16S rRNA (bacterial) and ITS (fungal) gene regions to characterize microbial communities.
  • Measurement of soil electrical conductivity, nutrient content, and calculation of a soil quality index.

    • Main Results:

    • Cultivation of all three plant species significantly reduced soil electrical conductivity.
    • Chicory cultivation notably increased soil nutrients, bacterial richness, and fungal diversity.
    • Microbial community structures correlated significantly with the soil quality index, indicating improved soil health.
    • While some beneficial fungi increased, certain plant treatments also saw rises in potentially pathogenic fungi, requiring careful crop rotation planning.

    Conclusions:

    • Salt-tolerant plants, particularly chicory, can effectively improve severely saline-alkaline soils.
    • Plant-microbe interactions play a key role in enhancing soil fertility and sustainability.
    • The soil quality index is a valuable tool for assessing soil health improvements.
    • Potential increases in pathogenic fungi necessitate strategic crop management for sustainable agriculture on reclaimed lands.