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Memorias de investigación
Ponencias en congresos:
Soil quality in a pasture after application of organic fertilizers or mineral for 7 years
Año:2008
Áreas de investigación
  • Química,
  • Agricultura
Datos
Descripción
Organic fertilizers can complement or replace mineral fertilization of a pasture with a sustained production; in this paper an evaluation is made of the changes occurring in the fertility of a soil (short term variable) and in its quality (long term variable) after 7 years of applying two types of organic fertilizer on it: poultry manure (PM) and sewage sludge pellets (SP), in comparison to those produced by mineral fertilization with respect to a control soil. The study has considered easily assessable physical, chemical and biological parameters as being possible -key factors- in the change. In addition, a study was made of the influence of the treatments on the stability of the soil (dispersion analyses), its moisture retention capacity (CAP) and the density of worms in the soil. The organic fertilizers were effective for improving the soil s surface horizon, so that its bulk density diminished and its structural tability increased; its biological activity, evaluated by means of its â - glucosidase activity and worm density, improved, especially with bird manure, which favoured the soil?s stability for plant maintenance, microbial development and C and N storage in the form of organic matter. The soil s water storage capacity and conservation also benefitted from the application of organic fertilizers. The parameters selected which were seen to be sensitive to the different treatments and which, moreover, had important correlations with physical, chemical or biological properties, were designated as the -key factors- of the study
Internacional
Si
Nombre congreso
EUROSOIL 2008
Tipo de participación
960
Lugar del congreso
Viena, Austria
Revisores
Si
ISBN o ISSN
978-3-902382-05-4
DOI
Fecha inicio congreso
25/08/2008
Fecha fin congreso
29/08/2008
Desde la página
154
Hasta la página
155
Título de las actas
Book of Abstracts
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Fernando Peregrina
  • Autor: Ignacio Mariscal Sancho (UPM)
  • Autor: Bruce C. Ball
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Calidad de Suelos y Aplicaciones medioambientales
  • Departamento: Edafología
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