Chicken manure-based organomineral fertilization improves nutrient use efficiency and reduces greenhouse gases (GHGs) emissions in maize

• Autores: Samaniego Vivanco, Tomás Daniel, Arévalo Aranda, Yuri Gandhi, Pérez Porras, Wendy Elizabeth, Chung Montoya, Fernando, Gómez Palomino, Laura, Quispe Callasi, Flor, Rodríguez Pérez, Berlan, Jia, Fang, Achata Böttger, Jorge
• Formato: artículo
• Fecha de Publicación: 2026
• Institución: Instituto Nacional de Innovación Agraria
• Repositorio: INIA-Institucional
• Lenguaje: inglés
• OAI Identifier: oai:repositorio.inia.gob.pe:20.500.12955/3203
• Enlace del recurso: http://hdl.handle.net/20.500.12955/3203; https://doi.org/10.1016/j.cesys.2026.100460
• Nivel de acceso: acceso abierto
• Materia: Organomineral fertilizer; Fertilizante organomineral; Nutrient use efficiency; Eficiencia en el uso de nutrientes; NOx; Carbon footprint; Huella de carbono; https://purl.org/pe-repo/ocde/ford#4.01.07; Maíz, Maize; Estiércol de aves de corral, Poultry manure; Abono compuesto, Compound fertilizers; Gases de efecto invernadero, Greenhouse gases; Fósforo, Phosphorus; Nitrógeno, Nitrogen; Análisis del ciclo de vida, Life cycle analysis.

Organomineral fertilizers (OMF) represent an opportunity to develop locally sourced fertilizers to decarbonize grain value chains. A two-location field study comparing OMF and mineral fertilizers (MF) agronomic and environmental performance was established at two Peruvian valleys, the environmental impacts of maize grain produced with locally produced OMF and imported MF were modelled through cradle-to-gate life cycle analysis (LCA). The carbon footprints (CF) of OMF resulted smaller than those of imported MF. Fully replacing MF with OMF results in equivalent grain yield, 43% higher phosphorus agronomic efficiency and reduced cradle-to-gate greenhouse gas (GHG) emissions in up to 232 kg carbon dioxide (CO₂) eq Mg⁻¹ grain. Estimated NOx emissions, nutrient lixiviation and mineral resource depletion were reduced as well, providing support for OMF as a tool for sustainable grain production.