UNESCO2015-07-152015-07-15https://bibliotecadigital.ciren.cl/handle/20.500.13082/15427PDFesAtribución 3.0 ChileEcologíaBiósfera "Ecología"Ecosistema acuáticoFertilizantesEcosistema TerrestreProgramme on man and the biosphere (mab). Consultative group on project 9. Ecological assessment of pest management and fertilizer use on terrestrial and acuatic ecosystems (part on fertilizers).LibroSector agrícola3439