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Grant support

This research was funded by the National Institute for Agricultural and Food Research and Technology of Spain (INIA), grant number RTA2013-00057-C05-04 (research project) and CPD-2015-0044 (FPI-INIA predoctoral fellowship).

Análisis de autorías institucional
Mateo-Marín N. - Autor (correspondencia)
Isla R. - Autor o Coautor
Guillen M. - Autor o Coautor
Quílez D. - Autor o Coautor
Publicaciones > Artículo

Agronomic and Environmental Implications of Substituting Pig Slurry for Synthetic Nitrogen in Mediterranean Wheat Systems

Publicado en:Agronomy-Basel. 10 (10): - 2020-10-01 10(10), doi: 10.3390/agronomy10101498

Mateo-Marín N.; Isla R.; Guillen M.; Quílez D.;


Centro de Investigación y Tecnología Agroalimentaria de Aragón - Entidad de origen
Ctr Invest & Tecnol Agroalimentaria Aragon, Unidad Suelos & Riegos, Avda Montanana 930, Zaragoza 50059, Spain - Autor o Coautor
Instituto de Investigacion Agropecuaria (INIA) Appeared in source as National Institute for Agricultural and Food Research and Technology of Spain (INIA) - Financiador


Resúmen: 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.

Palabras clave: Barley yield; Climate; Corn yield; Efficiency; Fertilization; Monocarbamide dihydrogen sulfate; N2o; Nitrogen losses; Nitrous oxide emissions; Oxide emission; Porcino; Soils; Strategies; Urea; Utilizacion de fertilizantes. teseo; Water

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