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Author Spotlight: Development and Characterization of Eco-Friendly Lignin-Based Microparticles for Enhanced Delivery of Bioflavonoids
Published on: March 1, 2024
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Research Progress in Lignin-Based Slow/Controlled Release Fertilizer
Jing Chen1, Xiaolin Fan1, Lidan Zhang1
1College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong, 510642, P. R. China.
Chemsuschem
|April 16, 2020
Summary
Lignin, a plant polymer, can be transformed into slow-release fertilizers, reducing waste and pollution. This review explores methods for preparing these eco-friendly fertilizers, urging further development for practical application.
Area of Science:
- Agricultural Science
- Materials Science
- Environmental Science
Background:
- Lignin is a major plant component and industrial byproduct, often combusted, leading to waste and pollution.
- Lignin possesses properties suitable for slow-release fertilizer applications, including slow release, chelation, and coating capabilities.
Purpose of the Study:
- To systematically review methods for preparing lignin-based slow/controlled release fertilizers.
- To summarize the mechanisms and applications of these preparation techniques.
- To highlight the need for improved standards and practical implementation.
Main Methods:
- Chemical modifications: ammoxidation, Mannich reaction, and other sustainable chemical treatments.
- Coating techniques: application with or without prior chemical modification of lignin.
- Chelation modifications: utilizing lignin's chelating properties.
Main Results:
- Various chemical and physical modification strategies can yield lignin-based slow/controlled release fertilizers.
- Lignin's inherent properties facilitate its use as an effective carrier and coating material for fertilizers.
- Current evaluation standards and methods require enhancement.
Conclusions:
- Lignin presents a sustainable resource for developing advanced slow/controlled release fertilizers.
- Further research and development are crucial to optimize preparation processes and accelerate adoption in agricultural practices.
- Improved standards and practical application are urgently needed to leverage lignin's potential in fertilizer technology.
