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Updated: May 12, 2025

Measuring Phosphorus Release in Laboratory Microcosms for Water Quality Assessment
Published on: July 22, 2019
Phosphorus mining and bioavailability for plant acquisition: environmental sustainability perspectives
Matthew Chidozie Ogwu1, Micaela Elizabeth Patterson2, Pia Angelina Senchak2
1Goodnight Family Department of Sustainable Development, Living Learning Center, Appalachian State University, 212, 305 Bodenheimer Drive, Boone, NC, 28608, USA. ogwumc@appstate.edu.
Microbes solubilize phosphorus (P) using organic acids and enzymes, offering a sustainable alternative to finite phosphate rock mining. Recycling P from waste further enhances agricultural resilience and environmental health.
Area of Science:
- Agricultural Science
- Environmental Science
- Microbiology
Background:
- Phosphorus (P) is vital for plant growth but often unavailable in soils, necessitating reliance on finite phosphate rock (PR) fertilizers.
- PR mining poses environmental risks due to hazardous contaminants and geopolitical vulnerabilities.
- Inefficient P uptake from fertilizers (10-20%) leads to environmental degradation.
Purpose of the Study:
- To review microbial P solubilization mechanisms.
- To assess the impacts of P mining and scarcity.
- To advocate for sustainable P recycling strategies for agricultural and environmental resilience.
Main Methods:
- Review of scientific literature on microbial P solubilization.
- Analysis of P mining impacts and scarcity issues.
- Exploration of sustainable P recycling from organic waste.
Main Results:
- Microbial P solubilization involves organic acids, enzymes (phosphatases, phytases), chelating agents, and biofilms.
- These mechanisms convert insoluble inorganic and organic P into plant-available forms.
- Second-generation P recycling from organic waste is presented as a viable alternative.
Conclusions:
- Microbial P solubilization is a key strategy for sustainable agriculture.
- Reducing reliance on PR mining through recycling is crucial for environmental and socioeconomic resilience.
- Integrated approaches combining microbial solutions and waste recycling can enhance P availability and sustainability.
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