Nitrogen use efficiency and residual effect of fertilizers withnitrification inhibitors

Alonso Ayuso, María; Gabriel Pérez, José Luis y Quemada Saenz-Badillos, Miguel (2016). Nitrogen use efficiency and residual effect of fertilizers withnitrification inhibitors. "European Journal of Agronomy", v. 80 ; pp. 1-8. ISSN 1161-0301. https://doi.org/10.1016/j.eja.2016.06.008.

Descripción

Título: Nitrogen use efficiency and residual effect of fertilizers withnitrification inhibitors
Autor/es:
  • Alonso Ayuso, María
  • Gabriel Pérez, José Luis
  • Quemada Saenz-Badillos, Miguel
Tipo de Documento: Artículo
Título de Revista/Publicación: European Journal of Agronomy
Fecha: 5 Julio 2016
Volumen: 80
Materias:
Escuela: E.T.S. de Ingeniería Agronómica, Alimentaria y de Biosistemas (UPM)
Departamento: Producción Agraria
Grupo Investigación UPM: Sistemas Agrarios (AgSystems) AgSystems
Licencias Creative Commons: Reconocimiento - No comercial - Compartir igual

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Resumen

Blending fertilizers with nitrification inhibitors (NI) is a technology to reduce nitrogen (N) losses. The application of NI could increase the soil N supply capacity over time and contribute to an enhancement of N-fertilizer recovery in some cropping systems. During two seasons, a field experiment with maize (Zea mays L.) was fertilized with ammonium sulfate nitrate (ASN) and DMPP (3,4 dimethylpyrazole phosphate) blended ASN (ENTEC) at two levels (130 and 170 kg N ha-1) under Mediterranean conditions. A control treatment with no added N fertilizer was also included. Maize yield, grain quality, nutritional state and fertilizer use efficiency were evaluated. Due to the observation of a soil residual effect, a non-fertilized sunflower (Helianthus annuus L.) was planted in the same plots to study the cumulative effect during a third experimental season. Laboratory determinations were performed in order to elucidate the possible sources of residual N. The second year, DMPP application allowed a 23% reduction of the fertilizer rate without decreasing crop yield or grain quality. In addition, the non-fertilized sunflower planted after the maize scavenge more N in treatments previously treated with ENTEC than with traditional fertilizers, increasing N use efficiency in the cropping systems. After DMPP application, N was conserved in non-ready soil available forms during at least one year and subsequently released to meet the sunflower crop demand. The potential N mineralization obtained from aerobic incubation under controlled conditions of soil samples collected before sunflower sowing was higher for ENTEC than ASN or control treatments. A higher δ15N in the soil indicated larger non-exchangeable NH4+ fixation in soils from the plots treated with ENTEC or ASN-170 than from the ASN-130 or the control. These results open the opportunity to increase N efficiency by designing crop rotations able to profit from the effect of NI on the soil residual N.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Gobierno de EspañaAGL2014-52310RSin especificarUniversidad Politécnica de MadridR MEJORA DEL MANEJO DE LOS CULTIVOS CUBIERTA PARA AUMENTAR LA SOSTENIBILIDAD DE SISTEMAS DE CULTIVO EN REGADIO
Gobierno de EspañaIJCI201420175Sin especificarSin especificarSin especificar
Comunidad de MadridS2013/ABI-2717AGRISOSTUniversidad Politécnica de MadridSistemas agrarios sostenibles. Manejo de carbono, nitrógeno y agua para optimizar producción y calidad

Más información

ID de Registro: 43138
Identificador DC: http://oa.upm.es/43138/
Identificador OAI: oai:oa.upm.es:43138
Identificador DOI: 10.1016/j.eja.2016.06.008
URL Oficial: http://www.sciencedirect.com/science/article/pii/S1161030116301216
Depositado por: Jose Luis Gabriel
Depositado el: 30 Ago 2016 06:03
Ultima Modificación: 01 Jul 2017 22:30
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