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

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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 reduc...

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Autores principales: Castán, Elisa, Satti, Patricia Silvia, González Polo, Marina, Iglesias, María Cándida, Mazzarino, María Julia
Formato: Articulo article acceptedVersion
Lenguaje:Inglés
Publicado: Elsevier 2016
Materias:
Biosolids
Animal Manures
Municipal Solid Waste
Compost Mixtures
Organic Matter
Nutrients
Ca carbonates
Ciencias de la Tierra y Medio Ambiente
Acceso en línea:http://rdi.uncoma.edu.ar/handle/uncomaid/17691
Aporte de:
Repositorio Institucional UNCo de Universidad Nacional del Comahue
id I22-R178-uncomaid-17691
record_format dspace
spelling I22-R178-uncomaid-176912024-02-15T11:41:03Z Managing the value of composts as organic amendments and fertilizers in sandy soils Castán, Elisa Satti, Patricia Silvia González Polo, Marina Iglesias, María Cándida Mazzarino, María Julia Biosolids Animal Manures Municipal Solid Waste Compost Mixtures Organic Matter Nutrients Ca carbonates Ciencias de la Tierra y Medio Ambiente 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. Fil: Castán, Elisa. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina Fil: Castán, Elisa. Consejo Nacional de Investigaciones Científicas y Tecnicas. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. Fil: Satti, Patricia Silvia. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. Fil: Satti, Patricia Silvia. Consejo Nacional de Investigaciones Científicas y Tecnicas. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. Fil: González Polo, Marina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. Fil: González Polo, Marina. Consejo Nacional de Investigaciones Científicas y Tecnicas. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. Fil: Iglesias, María Cándida. Universidad Nacional del Nordeste. Facultad de Ciencias Agropecuarias. Microbiología Agrícola; Argentina. Fil: Mazzarino, María Julia. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. Fil: Mazzarino, María Julia. Consejo Nacional de Investigaciones Científicas y Tecnicas. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. 2016 2024-02-14T14:13:30Z 2024-02-14T14:13:30Z Articulo article acceptedVersion 0167-8809 http://rdi.uncoma.edu.ar/handle/uncomaid/17691 eng Atribución-NoComercial-CompartirIgual 2.5 Argentina https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ application/pdf application/pdf Elsevier Agriculture, Ecosystems and Environment. Vol. 224 (2016)
institution Universidad Nacional del Comahue
institution_str I-22
repository_str R-178
collection Repositorio Institucional UNCo
language Inglés
topic Biosolids
Animal Manures
Municipal Solid Waste
Compost Mixtures
Organic Matter
Nutrients
Ca carbonates
Ciencias de la Tierra y Medio Ambiente
spellingShingle Biosolids
Animal Manures
Municipal Solid Waste
Compost Mixtures
Organic Matter
Nutrients
Ca carbonates
Ciencias de la Tierra y Medio Ambiente
Castán, Elisa
Satti, Patricia Silvia
González Polo, Marina
Iglesias, María Cándida
Mazzarino, María Julia
Managing the value of composts as organic amendments and fertilizers in sandy soils
topic_facet Biosolids
Animal Manures
Municipal Solid Waste
Compost Mixtures
Organic Matter
Nutrients
Ca carbonates
Ciencias de la Tierra y Medio Ambiente
description 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.
format Articulo
article
acceptedVersion
author Castán, Elisa
Satti, Patricia Silvia
González Polo, Marina
Iglesias, María Cándida
Mazzarino, María Julia
author_facet Castán, Elisa
Satti, Patricia Silvia
González Polo, Marina
Iglesias, María Cándida
Mazzarino, María Julia
author_sort Castán, Elisa
title Managing the value of composts as organic amendments and fertilizers in sandy soils
title_short Managing the value of composts as organic amendments and fertilizers in sandy soils
title_full Managing the value of composts as organic amendments and fertilizers in sandy soils
title_fullStr Managing the value of composts as organic amendments and fertilizers in sandy soils
title_full_unstemmed Managing the value of composts as organic amendments and fertilizers in sandy soils
title_sort managing the value of composts as organic amendments and fertilizers in sandy soils
publisher Elsevier
publishDate 2016
url http://rdi.uncoma.edu.ar/handle/uncomaid/17691
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