Composting of feedlot manure with sawdust-woodshavings: process and quality of the final product
Composting of feedlot manure is a common practice in developed countries which aims at taking advantage of its value as reclamation and fertilizer as well as at reducing its negative impact on the environment. In Argentina manure is often applied without treatments of stabilization and hygienizati...
| Main Authors: | , , , , , , , |
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| Format: | Online |
| Language: | spa |
| Published: |
Facultad de Ciencias Agropecuarias
2015
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| Subjects: | |
| Online Access: | https://revistas.unc.edu.ar/index.php/agris/article/view/16556 |
| _version_ | 1811172545648394240 |
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| author | Hang, S. Castán, E. Daghero, A. Buffa, E. Ringuelet, A. Satti, P. Mazzarino, M.J. Negro, G. |
| author_facet | Hang, S. Castán, E. Daghero, A. Buffa, E. Ringuelet, A. Satti, P. Mazzarino, M.J. Negro, G. |
| author_sort | Hang, S. |
| collection | Portal de Revistas |
| description | Composting of feedlot manure is a common practice in developed countries which aims at taking advantage of its value as reclamation and fertilizer as well as at reducing its negative impact on the environment. In Argentina manure is often applied without treatments of stabilization and hygienization. The aim of this work was to evaluate the effect of two rates of bulking agent (sawdust-woodshavings) and feedlot manure (1:1 and 2:1) on composting efficiency and final compost quality in experiments conducted as turning piles. Three piles per treatment were prepared at a pilot scale (3 m3each). The termophilic phase lasted 70-100 days and the content of faecal coliforms, potentially toxic materials and parameters of stability and maturity ? the latter being evaluated through water soluble C (WSC), ratio WSC/total N, ammonium, ratio ammonium/nitrate and germination index ? , indicated that after 4-6 months the product was innocuous, stable and mature. Pathogen and potentially toxic element contents were below the limits established by international laws. Compost 1:1 showed higher concentrations of total and extractable P than compost 2:1, and similar C and N values. When mixed with control soil both composts increased P and N availability and microbial respiration. |
| format | Online |
| id | oai:ojs.revistas.unc.edu.ar:article-16556 |
| institution | Universidad Nacional de Cordoba |
| language | spa |
| publishDate | 2015 |
| publisher | Facultad de Ciencias Agropecuarias |
| record_format | ojs |
| spelling | oai:ojs.revistas.unc.edu.ar:article-165562020-02-13T21:37:20Z Composting of feedlot manure with sawdust-woodshavings: process and quality of the final product Compostaje de estiércol de feedlot con aserrín/viruta: características del proceso y del producto final Hang, S. Castán, E. Daghero, A. Buffa, E. Ringuelet, A. Satti, P. Mazzarino, M.J. Negro, G. Compost estabilidad madurez calidad. Compost stability maturity quality. Composting of feedlot manure is a common practice in developed countries which aims at taking advantage of its value as reclamation and fertilizer as well as at reducing its negative impact on the environment. In Argentina manure is often applied without treatments of stabilization and hygienization. The aim of this work was to evaluate the effect of two rates of bulking agent (sawdust-woodshavings) and feedlot manure (1:1 and 2:1) on composting efficiency and final compost quality in experiments conducted as turning piles. Three piles per treatment were prepared at a pilot scale (3 m3each). The termophilic phase lasted 70-100 days and the content of faecal coliforms, potentially toxic materials and parameters of stability and maturity ? the latter being evaluated through water soluble C (WSC), ratio WSC/total N, ammonium, ratio ammonium/nitrate and germination index ? , indicated that after 4-6 months the product was innocuous, stable and mature. Pathogen and potentially toxic element contents were below the limits established by international laws. Compost 1:1 showed higher concentrations of total and extractable P than compost 2:1, and similar C and N values. When mixed with control soil both composts increased P and N availability and microbial respiration. El compostaje del estiércol vacuno de feedlot es una práctica habitual en países desarrollados, con el objeto de aprovechar su valor como enmienda y fertilizante y disminuir el efecto negativo en el ambiente. En la Argentina el estiércol suele aplicarse al suelo sin tratamientos de higienización y estabilización. El objetivo de este trabajo fue evaluar el efecto de dos proporciones de estructurante (aserrín-viruta) y estiércol de feedlot (1:1 y 2:1) en la eficiencia del proceso y la calidad del producto final en pilas con volteos al aire libre. Se prepararon tres pilas de cada proporción de 3 m3 cada una. La etapa termofílica se prolongó por 70-100 días y el contenido de coliformes fecales, elementos potencialmente tóxicos y parámetros de estabilidad y madurez (C soluble en agua, relación C soluble en agua/N total, amonio, relación amonio/nitratos e índice de germinación) indicaron que a los 4-6 meses de iniciado el proceso el producto era inocuo, estable y maduro. El contenido de patógenos y de elementos potencialmente tóxicos estuvieron por debajo de los límites establecidos por la legislación internacional. La proporción 1:1 presentó mayor concentración de P total y extractable que la proporción 2:1 y concentraciones similares de C y N. Agregados a un suelo control aumentaron la respiración microbiana y la disponibilidad de N y P. Facultad de Ciencias Agropecuarias 2015-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unc.edu.ar/index.php/agris/article/view/16556 10.31047/1668.298x.v32.n1.16556 AgriScientia; Vol. 32 No. 1 (2015); 55-65 AgriScientia; Vol. 32 Núm. 1 (2015); 55-65 1668-298X 10.31047/1668.298x.v32.n1 spa https://revistas.unc.edu.ar/index.php/agris/article/view/16556/16368 |
| spellingShingle | Compost estabilidad madurez calidad. Compost stability maturity quality. Hang, S. Castán, E. Daghero, A. Buffa, E. Ringuelet, A. Satti, P. Mazzarino, M.J. Negro, G. Composting of feedlot manure with sawdust-woodshavings: process and quality of the final product |
| title | Composting of feedlot manure with sawdust-woodshavings: process and quality of the final product |
| title_alt | Compostaje de estiércol de feedlot con aserrín/viruta: características del proceso y del producto final |
| title_full | Composting of feedlot manure with sawdust-woodshavings: process and quality of the final product |
| title_fullStr | Composting of feedlot manure with sawdust-woodshavings: process and quality of the final product |
| title_full_unstemmed | Composting of feedlot manure with sawdust-woodshavings: process and quality of the final product |
| title_short | Composting of feedlot manure with sawdust-woodshavings: process and quality of the final product |
| title_sort | composting of feedlot manure with sawdust woodshavings process and quality of the final product |
| topic | Compost estabilidad madurez calidad. Compost stability maturity quality. |
| topic_facet | Compost estabilidad madurez calidad. Compost stability maturity quality. |
| url | https://revistas.unc.edu.ar/index.php/agris/article/view/16556 |
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