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Updated: Jun 28, 2025

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Measuring Phosphorus Release in Laboratory Microcosms for Water Quality Assessment
Published on: July 22, 2019
6.5K
[Intensive Citrus Cultivation Suppresses Soil Phosphorus Cycling Microbial Activity]
Lian-Hao Zhou1,2, Quan-Chao Zeng1,2, Tang-Ying-Ze Mei3
1Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
Huan Jing Ke Xue= Huanjing Kexue
|April 17, 2024
Summary
Citrus cultivation alters soil phosphorus strategies, favoring external additions over microbial mineralization. This shift reduces microbial diversity and alters community structure in orchard soils compared to natural forests.
Area of Science:
- Soil Microbiology
- Biogeochemical Cycles
- Agricultural Science
Context:
- Soil microbes are crucial for the phosphorus cycle, impacting crop nutrient uptake and yield.
- Understanding microbial phosphorus acquisition is vital for sustainable agriculture.
- Citrus cultivation practices can significantly influence soil properties and microbial communities.
Purpose:
- To investigate how citrus cultivation affects soil microbial strategies for acquiring phosphorus.
- To compare phosphorus fractions, microbial diversity, and the abundance of the phoD gene in citrus orchard soils versus adjacent natural forests.
Summary:
- Citrus cultivation decreased soil pH and increased available phosphorus, altering soil phosphorus fractions.
- Orchard soils showed lower microbial diversity and phoD gene abundance, indicating a shift from microbial mineralization to external phosphorus addition.
- Microbial community structure and composition of phosphate-solubilizing bacteria differed significantly between citrus and natural forest soils.
Impact:
- Citrus cultivation shifts soil microbial phosphorus acquisition from organic matter mineralization to reliance on external inputs.
- This study highlights the ecological consequences of agricultural practices on soil microbial functions and nutrient cycling.
- Findings provide insights for optimizing phosphorus management in agricultural systems to enhance nutrient use efficiency and crop productivity.
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