Cambios en la presencia de especies de oribátidos (Acarina, Oribatida) asociados a la fertilización con purín porcino en clima Mediterráneo seco
In rainfed agricultural systems, the sustainability of fertilization practices with products of organic origin needs indicators that guarantee their suitability. Oribatid mites, because of their growth characteristics and their function as organic matter transformers, are potential biological indica...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositorio: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:10459.1/465947 |
| Acceso en línea: | https://doi.org/10.12706/itea.2023.022 https://hdl.handle.net/10459.1/465947 |
| Access Level: | acceso abierto |
| Palabra clave: | Bioindicadores de contaminación Cereal Deyecciones ganaderas Dominancia Soil health |
| Sumario: | In rainfed agricultural systems, the sustainability of fertilization practices with products of organic origin needs indicators that guarantee their suitability. Oribatid mites, because of their growth characteristics and their function as organic matter transformers, are potential biological indicators. A study on the presence of oribatid mite species in a fertilization experiment (a treatment with pig slurry at a dose of 161 kg N·ha-1 and a control) was carried out. Under a dry Mediterranean climate, the experiment was established twelve years ago. It included a rotation of wheat-barley under rainfed conditions. During the barley's cropping season (October, March and June), three soil samples were taken for the identi- fication of the number of individuals for the different oribatid species present. Four species were found, but there were no significant differences in diversity or dominance between treatments. However, a significantly higher abundance of oribatids was found in plots with slurry application, linked to a signi- ficant increment of Oribatula (Zygoribatula) excavata. The higher presence of this species, with no de- triment to the rest, can be considered a positive indicator regarding the sustainability of this fertilization practice. In other words, it endorses the absence of negative impacts on soil health when the applied slurry rate was below the limit for N of organic origin established in N vulnerable zones. |
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