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Alginate-cellulose is a green material with water retention properties. This research proposed the simulation model of controlled-release fertilizer by using the material with similar properties to Alginate-cellulose. We use the simulation model to investigate polymer-blended fertilizer performance compared to polymer-coated fertilizer and study the controlling factor of controlled releases, such as the shape of fertilizer and roughness of polymer coating. Our simulation result concludes that the fertilizer shape with a higher perimeter to the area for the unit area and roughness on imperfection coating causes the faster nutrient release. Moreover, we discover that polymer-blended fertilizer is acceptable for the alternative method of controlled-release fertilizer and can perform better with increased polymer proportion, especially when the polymer proportion is more than 30 %.

Evaluation of alginate-cellulose used in controlled release fertilizer for slow nutrient release and water retention