| Summary: | The present study focuses on the evaluation of a novel prolonged action fertilizer that has been encapsulated by a combination of carboxymethyl cellulose (CMC) and humic acid (HA). The aim of this research was to investigate the release of the essential plant nutrients: phosphorus, nitrogen, and potassium. This study investigated the material composition and nutrient release properties of a novel prolonged action fertilizer encapsulated by CMC and HA. The release of these nutrients was determined by quantifying their concentrations over time using various analytical techniques, such as photometric, titrimetric, and flame photometric methods. The results revealed that the CMC/HA matrix effectively controlled the nutrient release, with extended-release durations observed under acidic (pH 5.0) and neutral (pH 7.0) conditions compared to alkaline environments (pH 8.5). This indicates that the encapsulated fertilizer is well suited for a variety of soil pH conditions, particularly in acidic and neutral soils. This information could have important implications for the development of more sustainable and environmentally friendly fertilizer technologies.
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