Please use this identifier to cite or link to this item: http://hdl.handle.net/10532/5123
Title: Agronomic and Environmental Implications of Substituting Pig Slurry for Synthetic Nitrogen in Mediterranean Wheat Systems
Authors: Mateo Marín, Noemí
Isla Climente, Ramón
Guillén Castillo, Mónica
Quílez y Sáez de Viteri, Dolores
Issue Date: 2020
Citation: Agronomy, vol. 10, num. 10, (2020)
Abstract: Using slurries as fertilizers is a promising strategy for the reuse of nutrients and striving towards a circular economy. This study aims to assess the agronomic productivity and the environmental effects on Mediterranean sprinkler-irrigated wheat during three consecutive years of (1) the use of pig slurry (PS) as a substitute for a synthetic fertilizer (urea, U) and (2) the addition of a urease inhibitor (monocarbamide dihydrogen sulfate, MCDHS) to pig slurry (PSI). A nitrogen (N) target rate of 120 kg NH4+-N ha−1 as U, PS, or PSI (main factor) was applied at tillering, and it was supplemented with N application at stem elongation (secondary factor). Grain yield, nitrogen use efficiency indexes, and nitrous oxide emissions were not significantly affected by the N source, U, or PS; in contrast to grain protein that was affected by the N source (lower protein content in PS). The higher unaccounted N from soil balance in PS compared to U fertilization could be associated with higher ammonia volatilization, although additional studies should confirm this hypothesis. Our study suggests that, under the considered cropping conditions, PS does not affect productivity or N2O losses compared to U. The addition of MCDHS to pig slurry did not display agronomic or environmental benefits under the evaluated agro-environmental conditions.
URI: http://hdl.handle.net/10532/5123
Related document: https://www.mdpi.com/2073-4395/10/10/1498
License: http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Appears in Collections:[DOCIART] Artículos científicos, técnicos y divulgativos

Files in This Item:
File Description SizeFormat 
2020_253.pdf727,45 kBAdobe PDFThumbnail
View/Open


This item is licensed under a Creative Commons License Creative Commons

La información de este repositorio es indexada en: