Ramakrishnan,YNayanajith,L.D.CDe Zoysa,H.P.E2026-09-182026-09-182026-05ISSN 1012 - 8999https://dr.ichemc.ac.lk/handle/123456789/483Abstract No: 2025_420 Page 41Conventional urea fertilizers exhibit critically low nitrogen use efficiency attributable to rapid aqueous dissolution, resulting in substantial urea losses.en-USControlled-release fertilizernitrogen efficiencyureabentonitepolyvinyl alcoholFormulating and characterizing bentonite-intercalated and polymermodified urea composites for controlled nutrient releaseArticle