Chagas, Júnior OlairGomes, José MessiasCunha, Isabela Cristina de MatosMelo, Nathalie Ferreira Silva deFraceto, Leonardo FernandesSilva, Gilmare Antônia daLobo, Fabiana Aparecida2018-05-212018-05-212018CHAGAS, J. O. et al. Polymeric microparticles for modified release of NPK in agricultural applications. Arabian Journal of Chemistry, v. 1, p. 1, 2018. Disponível em: <https://www.sciencedirect.com/science/article/pii/S1878535218300650>. Acesso em: 05 abr. 2018. 18785352http://www.repositorio.ufop.br/handle/123456789/9956The aim of this work was to synthesize polymeric microparticles as carriers for nitrogen, phosphorus, and potassium (NPK fertilizer) for agricultural applications, using polyglycerol (PG) to improve the synthesis procedure. Multivariate experimental designs were employed to obtain a satisfactory synthesis. The desirability function identified the best conditions for preparation of the microparticles as being 100.00 mg of poly(e-caprolactone) (PCL), 825.00 mg of PG, 9.25 mL of chloroform, and 0.9% w/v of polyvinyl alcohol (PVA). This resulted in average encapsulation rates of 94.23% for N, 99.80% for P, and 65.00% for K. The profile of release from the microparticles was according to diffusion following Fick’s Law. These observations confirmed the capacity of the proposed microparticles to sustain a continuous and prolonged release of NPK for the purpose of plant fertilization.en-USabertoPolymeric microparticlesFertilizersPolyglycerolModified releaseArtigo publicado em periodicoThis is an open access article under the CC BY-NC-ND license. Fonte: o próprio artigo.