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Phosphorus and nutrient management
Research Guide
What is Phosphorus and nutrient management?
Phosphorus and nutrient management is the recovery and sustainable management of phosphorus, a critical nutrient for global food security, through methods such as struvite formation, adsorption, and biochar utilization to remove phosphorus from wastewater and reuse it as fertilizer.
This field addresses global phosphorus scarcity by developing techniques for phosphorus recovery and recycling from wastewater to support long-term sustainability in food production. Research encompasses 50,394 works focused on nutrient recovery methods including struvite formation, adsorption, and biochar utilization. Key studies examine soil phosphorus forms, availability to plants, and changes induced by cultivation practices.
Topic Hierarchy
Research Sub-Topics
Struvite Precipitation for Phosphorus Recovery
This sub-topic develops controlled crystallization of struvite from wastewater for reusable fertilizer production. Researchers optimize pH, magnesium dosing, and reactor designs.
Biochar Phosphorus Adsorption
This sub-topic investigates modified biochars as sorbents for phosphorus capture from effluents. Researchers study pyrolysis conditions and desorption for fertilizer reuse.
Mehlich-3 Soil Phosphorus Extraction
This sub-topic refines Mehlich-3 methods for accurate plant-available phosphorus measurement in soils. Researchers calibrate for diverse soil types and cropping systems.
Phosphorus Fractions in Cultivated Soils
This sub-topic analyzes inorganic and organic P transformations under tillage and fertilization. Researchers model long-term dynamics for sustainable management.
Constructed Wetlands for Nutrient Removal
This sub-topic evaluates wetland designs for phosphorus and nitrogen retention from agricultural runoff. Researchers assess plant uptake, sedimentation, and hydraulic performance.
Why It Matters
Phosphorus and nutrient management supports global food security by recycling phosphorus from wastewater, reducing reliance on finite rock phosphate reserves. "The story of phosphorus: Global food security and food for thought" by Cordell et al. (2009) highlights the risks of phosphorus scarcity to food production, advocating recovery strategies. In agriculture, "Mehlich 3 soil test extractant: A modification of Mehlich 2 extractant" by Mehlich (1984) provides a method to assess extractable phosphorus, enabling precise fertilizer application and reducing environmental losses. Constructed wetlands remove nutrients effectively, as shown in "Removal of nutrients in various types of constructed wetlands" by Vymazal (2006), with applications in wastewater treatment for reuse as fertilizer.
Reading Guide
Where to Start
"The story of phosphorus: Global food security and food for thought" by Cordell et al. (2009), as it provides an accessible overview of phosphorus scarcity and its implications for food security, serving as an entry point to recovery strategies.
Key Papers Explained
"Phosphorus" by Olsen and Sommers (1982) establishes methods for soil phosphorus measurement, which Hedley et al. (1982) in "Changes in Inorganic and Organic Soil Phosphorus Fractions Induced by Cultivation Practices and by Laboratory Incubations" apply to show cultivation losses. Mehlich (1984) in "Mehlich 3 soil test extractant: A modification of Mehlich 2 extractant" builds on these by offering a practical extractant for nutrient assessment. Vymazal (2006) in "Removal of nutrients in various types of constructed wetlands" extends to wastewater recovery techniques.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Research emphasizes phosphorus recovery from wastewater via adsorption and struvite, linking to soil application tested by Mehlich 3 methods. No recent preprints available, so frontiers follow established papers on constructed wetlands and soil fraction changes.
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | Transformation of the Nitrogen Cycle: Recent Trends, Questions... | 2008 | Science | 6.8K | ✕ |
| 2 | Nutrient Requirements of Dairy Cattle | 2001 | National Academies Pre... | 6.0K | ✕ |
| 3 | Mehlich 3 soil test extractant: A modification of Mehlich 2 ex... | 1984 | Communications in Soil... | 5.4K | ✕ |
| 4 | The story of phosphorus: Global food security and food for tho... | 2009 | Global Environmental C... | 5.0K | ✕ |
| 5 | Nitrogen—Inorganic Forms | 1982 | Agronomy monograph/Agr... | 4.4K | ✕ |
| 6 | A review of potentially low-cost sorbents for heavy metals | 1999 | Water Research | 3.0K | ✕ |
| 7 | Phosphorus | 1982 | Agronomy monograph/Agr... | 2.9K | ✕ |
| 8 | Changes in Inorganic and Organic Soil Phosphorus Fractions Ind... | 1982 | Soil Science Society o... | 2.9K | ✕ |
| 9 | Managing nitrogen for sustainable development | 2015 | Nature | 2.7K | ✓ |
| 10 | Removal of nutrients in various types of constructed wetlands | 2006 | The Science of The Tot... | 2.7K | ✕ |
Frequently Asked Questions
What methods determine soil phosphorus availability to plants?
"Phosphorus" by Olsen and Sommers (1982) states that methods for determining soil phosphorus, its forms, and availability to plants are essential for understanding phosphorus behavior in soils. Selection of a suitable method requires clear objectives for soil phosphorus measurement. These methods guide nutrient management practices in agriculture.
How does cultivation affect soil phosphorus fractions?
"Changes in Inorganic and Organic Soil Phosphorus Fractions Induced by Cultivation Practices and by Laboratory Incubations" by Hedley et al. (1982) found that 65 years of wheat-wheat-fallow rotation reduced total soil phosphorus by 29% compared to permanent pasture. Major losses occurred in inorganic fractions accessible to plants. Sequential extraction techniques revealed shifts in phosphorus forms due to cultivation.
What is the Mehlich 3 soil test extractant?
"Mehlich 3 soil test extractant: A modification of Mehlich 2 extractant" by Mehlich (1984) modified the Mehlich 2 extractant by substituting nitrate for chloride and adding ammonium fluoride to include copper extraction. This retains suitability for a wide range of soils while minimizing corrosive properties. Mehlich 3 measures extractable nutrients including phosphorus accurately.
How do constructed wetlands remove nutrients?
"Removal of nutrients in various types of constructed wetlands" by Vymazal (2006) demonstrates nutrient removal, including phosphorus, in different wetland types treating wastewater. These systems support phosphorus recovery for fertilizer reuse. Efficiency varies by design and wastewater composition.
Why is phosphorus linked to global food security?
"The story of phosphorus: Global food security and food for thought" by Cordell et al. (2009) connects phosphorus availability to food production sustainability. Recovery from waste addresses scarcity risks. Management ensures long-term nutrient supply for crops.
Open Research Questions
- ? How can inefficiencies in phosphorus use from wastewater be minimized for higher recovery rates?
- ? What sequential extraction improvements can better quantify cultivation-induced changes in soil phosphorus fractions?
- ? Which sorbents optimize phosphorus adsorption alongside heavy metals in industrial wastewater?
- ? How do constructed wetland designs maximize phosphorus removal under varying global conditions?
- ? What integration of nitrogen and phosphorus cycles enhances sustainable nutrient management?
Recent Trends
The field includes 50,394 works on phosphorus recovery with keywords like struvite, adsorption, biochar, and sustainability, but 5-year growth data is unavailable.
High-citation papers from 1982-2009 dominate, such as Galloway et al. with 6762 citations on nitrogen cycles relevant to nutrient management.
2008No recent preprints or news in the last 12 months reported.
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