@prefix agrovoc: <http://aims.fao.org/aos/agrovoc/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix ns0: <http://art.uniroma2.it/ontologies/vocbench#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

agrovoc:xDef_550b98e7
  rdf:value "Urea formaldehyde is the organic N compound mainly used for the slow release of nitrogen. It is prepared by the reaction of excess urea under controlled pH and temperature."@en ;
  ns0:hasSource "Rajan, Maya & Shahena, S. & Chandran, Vinaya & Mathew, Linu. (2021). Controlled release of fertilizers—concept, reality, and mechanism. 10.1016/B978-0-12-819555-0.00003-0, citing A. Shaviv, Preparation Methods and Release Mechanisms of Controlled Release Fertilisers, International Fertiliser Society, 1999." ;
  dc:created "2025-07-11T11:42:35"^^xsd:dateTime .

agrovoc:c_28f51e24 skos:definition agrovoc:xDef_550b98e7 .