Managing the value of composts as organic amendments and fertilizers in sandy soils

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dc.creator Castán, Elisa
dc.creator Satti, Patricia Silvia
dc.creator González Polo, Marina
dc.creator Iglesias, María Cándida
dc.creator Mazzarino, María Julia
dc.date 2016
dc.date.accessioned 2024-02-14T14:13:30Z
dc.date.available 2024-02-14T14:13:30Z
dc.identifier.issn 0167-8809 es_ES
dc.identifier.uri http://rdi.uncoma.edu.ar/handle/uncomaid/17691
dc.description.abstract Nutrient rich composts are employed at low rates to minimize risks of N and P losses; this limits their value as soil improvers through C addition and the build up of soil organic matter. Blending with nutrientpoor composts such as those from the organic fraction of municipal solid waste could reduce the risks of nutrient losses while maintaining the positive effects on soil organic matter. We conducted a 2-yr experiment with composts of diverse origin: organic fraction of municipal solid waste (MC), cattle feedlot manure (FC), poultry litter (PC) and biosolids (BC), alone or blended (FC-MC, PC-MC) in a sandy soil under the humid warm climatic conditions of NE Argentina. We studied the effects of a single application (40 Mg ha 1) on the surface soil (0–10 cm) properties of a permanent subtropical pasture through annual chemical and biological analyses. On five dates, available N and P were also determined at 0–10 cm and 55–65 cm. Soil total C and N increased over time while potential N mineralization and CO2 emission decreased. All amendments resulted in similar increments of soil C and N despite marked differences in quantity and quality of organic matter inputs. Because MC had substantial amounts of Ca carbonates, it contributed to a reduction of available P from manure composts through dilution and precipitation. The release of available P from biosolids composts (where P is bound to Fe and Al) was lower than from manure composts (where P is bound by Ca phosphates). The highest environmental risk from compost application would likely be the leaching of soluble N produced during the composting process and released immediately after field application. Blending with N-poor MC would contribute to nitrate dilution. es_ES
dc.format application/pdf es_ES
dc.language eng es_ES
dc.publisher Elsevier es_ES
dc.rights Atribución-NoComercial-CompartirIgual 2.5 Argentina es_ES
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ es_ES
dc.source Agriculture, Ecosystems and Environment. Vol. 224 (2016) es_ES
dc.subject Biosolids es_ES
dc.subject Animal Manures es_ES
dc.subject Municipal Solid Waste es_ES
dc.subject Compost Mixtures es_ES
dc.subject Organic Matter es_ES
dc.subject Nutrients es_ES
dc.subject Ca carbonates es_ES
dc.subject.other Ciencias de la Tierra y Medio Ambiente es_ES
dc.title Managing the value of composts as organic amendments and fertilizers in sandy soils es_ES
dc.type Articulo es
dc.type article eu
dc.type acceptedVersion eu
dc.description.fil Fil: Castán, Elisa. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina es_ES
dc.description.fil Fil: Castán, Elisa. Consejo Nacional de Investigaciones Científicas y Tecnicas. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. es_ES
dc.description.fil Fil: Satti, Patricia Silvia. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. es_ES
dc.description.fil Fil: Satti, Patricia Silvia. Consejo Nacional de Investigaciones Científicas y Tecnicas. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. es_ES
dc.description.fil Fil: González Polo, Marina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. es_ES
dc.description.fil Fil: González Polo, Marina. Consejo Nacional de Investigaciones Científicas y Tecnicas. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. es_ES
dc.description.fil Fil: Iglesias, María Cándida. Universidad Nacional del Nordeste. Facultad de Ciencias Agropecuarias. Microbiología Agrícola; Argentina. es_ES
dc.description.fil Fil: Mazzarino, María Julia. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. es_ES
dc.description.fil Fil: Mazzarino, María Julia. Consejo Nacional de Investigaciones Científicas y Tecnicas. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. es_ES
dc.cole Artículos es_ES


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