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Título

Abundance and biodiversity of soil microarthropods as influenced by different types of organic manure in a long-term field experiment in Central Spain

AutorKautz, Timo; López-Fando, Cristina ; Ellmer, Frank
Palabras claveMites
Collembola
Organic manure
Mineral N-fertilization
Long-term field experiment
Fecha de publicación2006
EditorElsevier
CitaciónApplied Soil Ecology (33): 278-285 (2006)
ResumenWe studied the effects of long-term organic and mineral fertilization on soil microarthropods and soil chemical parameters in a field experiment under semi-arid conditions in Central Spain. Two different regimes of organic manuring, i.e. farmyard manure applied once in 3 years versus annual manuring with crop residues were compared. Soil carbon and nitrogen contents were increased markedly by farmyard manure, whereas straw and green manure had no significant effect. In contrast, the abundance of soil microarthropods was increased by annual application of straw and green manure, but not by farmyard manure last applied 2.5 years before sampling.We conclude that in the field experiment under study the abundance of soil microarthropods was influenced by the immediate food supply rather than by soil chemical parameters, such as carbon and nitrogen content or the pH. Biodiversity of soil microarthropods, as estimated by the Shannon index, was not affected significantly by straw and green manure. Obviously, other management practices, especially tillage, are limiting the species composition of soil microarthropods and thereby overshadow possible effects of fertilization on diversity.
Descripción8 pages, figures, and tables statistics.
Versión del editorhttp://dx.doi.org/101016/j.apsoil.2005.10.003
URIhttp://hdl.handle.net/10261/25253
DOI10.1016/j.apsoil.2005.10.003
ISSN0929-1393
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