Sustainable-controlled release fertilizer and synthesis method thereof

A natural char/struvite composite fertilizer addresses the inefficiencies of conventional fertilizers by enhancing phosphorus availability and reducing environmental impact, achieving improved nutrient release and plant growth.

WO2026013432A1 Publication Date: 2026-01-15PIRI MARZIYEH +2
0 Cites 0 Cited by

Patent Information

Application Number
PCT/IB2024/056680
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-07-09
Publication Date
2026-01-15

AI Technical Summary

Technical Problem

Conventional phosphate fertilizers have low efficiency and pollute the environment, while struvite-based fertilizers provide phosphorus poorly in early plant growth stages due to low solubility, necessitating a cost-effective solution that enhances phosphorus availability and reduces environmental impact.

Method used

A sustainable controlled release fertilizer is developed using a natural char/struvite composite with a phosphorus pentoxide content of 16-25% wt%, synthesized from wastewater, with a mole ratio of Mg2+:NH4+:PO43’ as 2:1:1, and varying natural char to struvite ratios (0:100, 25:75, 50:50, or 75:25) to improve phosphorus dissolution and availability.

Benefits of technology

The composite fertilizer effectively provides phosphorus, nitrogen, and magnesium for early plant growth, reducing leaching and pollution, with enhanced solubility and nutrient uptake, outperforming traditional fertilizers in growth and nutrient content.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

A sustainable control release fertilizer and a producing method thereof are developed. The sustainable control release fertilizer comprises a natural char / struvite composite with different ratio of the natural char to struvite (0:100, 25:75, 50:50, 75:25). The natural char / struvite composites represent a phosphorus pentoxid content in a range of 16 wt% to 25 wt% which is more than a common phosphate fertilizer. Furthermore, a mole ratio of Mg2+:NH4+:PO4 3- in the sustainable control release fertilizer is 2:1:1. The sustainable control release fertilizer can enhance phosphorus uptake of at least one plant at early stage of growth due to its composition as well as the developed producing method of sustainable control release fertilizer is based on recovery of phosphorus from wastewater that has the good economic and environmental effects.
Need to check novelty before this filing date? Find Prior Art