A bio-based slow-release fertilizer and a preparation method thereof
By combining the three-dimensional gel network of bio-based slow-release pesticides and fertilizers with natural cross-linking stabilizers, the problems of stability and synchronous release of pesticide and fertilizer products are solved, achieving synergistic release and uniform distribution of pesticides and nutrients, which is suitable for industrial production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUNAN SHENLONG TECHNOLOGY CO LTD
- Filing Date
- 2026-05-11
- Publication Date
- 2026-07-17
AI Technical Summary
Existing pesticide-fertilizer products suffer from poor physical mixing stability, asynchronous release, non-biobased slow-release carriers, and the risk of microplastic residues. Gel-based pesticide-fertilizers are prone to disintegration in the soil, leading to sudden pesticide release, and lack synergistic design for the loading of anionic nutrients and pesticides.
Bio-based slow-release pesticides and fertilizers are used, forming a three-dimensional polyionic composite gel network through polyglutamic acid and chitosan. Natural cross-linking stabilizers are introduced and combined with pore-forming agents to achieve layered loading and physical encapsulation of pesticides and nutrients, enhancing the stability of the gel in the soil. The gel properties are restored through selective cross-linking and pore-forming agents.
It achieves simultaneous release of pesticides and nutrients, enhances the stability of the gel in the soil, reduces pesticide loss, ensures uniform distribution and simultaneous release of pesticides, and the raw materials are completely biodegradable, making it suitable for industrial production.
Smart Images
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