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Título

Short-term effects of organic municipal wastes on wheat yield, microbial biomass, microbial activity, and chemical properties of soil

Autor Franco-Otero, Victor G.; Soler-Rovira, Pedro ; Hernández, Diana; García López de Sá, Esther ; Méndez, Ana; Plaza de Carlos, César
Palabras clave Composting
Heat drying
Municipal solid waste
Sewage sludge
Soil microbial size and activity
Thermal drying
Fecha de publicación feb-2012
EditorSpringer
Citación Biology and Fertility of Soils 48: 205-216 (2012)
ResumenThe objectives of this work were to (a) investigate the short-term effects of applications of mineral fertilizer, municipal solid waste (MSW) compost, and two sewage sludges (SSs) subjected to different treatments (composting and thermal drying) on microbial biomass and activity of soil by measuring microbial biomass C, adenosine 5′-triphosphate content, basal respiration, and dehydrogenase, catalase, urease, phosphatase, β-glucosidase, and N-α-benzoyl-L-argininamide- hydrolyzing activities and (b) explore the relationships between soil microbiological, biochemical, and chemical properties and wheat yields under semiarid field conditions by principal component analysis. The additions of MSW compost, SS compost, and thermally dried SS did not affect significantly soil microbial biomass, as compared to mineral fertilization and no amendment. However, microbial activity increased in organically amended soils, probably due to the stimulating effect of the added decomposing organic matter. Changes in soil microbiological and biochemical properties showed no significant relationships with wheat yields, probably because plant growth was primarily waterlimited, as typically occurs in semiarid regions.
Descripción 12 páginas, 3 figuras y 6 tablas.
Versión del editorhttp://dx.doi.org/10.1007/s00374-011-0620-y
URI http://hdl.handle.net/10261/112270
DOI10.1007/s00374-011-0620-y
ISSN0178-2762
E-ISSN1432-0789
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