Bioconversion of agro-industrial wastes: Combined compost and vermicompost processes using Eisenia fetida for stabilization of poultry litter
<strong>Purpose </strong>A combined treatment of composting and vermicomposting of poultry litter (PL), rice hulls (RH) and/or eucalyptus sawdust (ES) was carried out in order to obtain a high-quality organic fertilizer and avoid the environmental problems associated with the use of raw...
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OICC Press
2020-06-01
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| Series: | International Journal of Recycling of Organic Waste in Agriculture |
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| Online Access: | http://ijrowa.khuisf.ac.ir/article_672000_d0a50b5394f0df777cacf5c55793ed9c.pdf |
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| author | Carolina Elisabet Masin Maria Emilia Fernandez Maia Raquel Lescano Cristina Susana Zalazar |
| author_facet | Carolina Elisabet Masin Maria Emilia Fernandez Maia Raquel Lescano Cristina Susana Zalazar |
| author_sort | Carolina Elisabet Masin |
| collection | DOAJ |
| description | <strong>Purpose </strong>A combined treatment of composting and vermicomposting of poultry litter (PL), rice hulls (RH) and/or eucalyptus sawdust (ES) was carried out in order to obtain a high-quality organic fertilizer and avoid the environmental problems associated with the use of raw poultry manure and fresh agricultural waste materials.<br /> <strong>Methods </strong>Three composting mixtures were made at volume proportions: 1:3 RH/PL (M1); 1:2 ES/PL (M2) and 0.5:1:2 RH/ES/PL (M3). Composting (120 days) followed by vermicomposting (90 days) using earthworms (<em>Eisenia fetida</em>) were conducted during the autumn-winter season, outdoors and sheltered. Moisture content was kept at 60-70%. Physicochemical (pH, electrical conductivity, lignin, total carbon and nitrogen, organic matter, ammonium and specific cations), total microbial activity (fluorescein diacetate hydrolysis) and microbiological parameters were recorded throughout both processes. Phytotoxicity tests were lastly performed by means of <em>Lactuca sativa, </em>L. seed germination, to compare the quality of the organic fertilizers obtained.<br /> <strong>Results </strong>A sequential compost-vermicompost process enhanced the properties of the final products. Particularly, electrical conductivity was markedly lower in all vermicomposts (1.81-2.28 mS cm<sup>-1</sup>) and within the values recommended for the growth of sensitive plants; microbial activity reached 187.1-203.8 µg FDA g<sub>soil</sub><sup>-1</sup> h<sup>-1</sup>. Germination Index values in vermicomposts were greater than 60%, indicating the high quality of the products obtained, being the mixture 0.5RH:1ES:2PL, the one which showed better quality and higher maturation degree.<br /> <strong>Conclusion </strong>The system that combines both processes (composting+vermicomposting) was effective to produce a stabilized organic fertilizer from poultry litter with other waste organic materials. |
| format | Article |
| id | doaj-art-848ede04bdc740afb8f64f2af87e233c |
| institution | Kabale University |
| issn | 2195-3228 2251-7715 |
| language | English |
| publishDate | 2020-06-01 |
| publisher | OICC Press |
| record_format | Article |
| series | International Journal of Recycling of Organic Waste in Agriculture |
| spelling | doaj-art-848ede04bdc740afb8f64f2af87e233c2024-12-02T06:37:50ZengOICC PressInternational Journal of Recycling of Organic Waste in Agriculture2195-32282251-77152020-06-019210711810.30486/ijrowa.2020.1885790.1011672000Bioconversion of agro-industrial wastes: Combined compost and vermicompost processes using Eisenia fetida for stabilization of poultry litterCarolina Elisabet Masin0Maria Emilia Fernandez1Maia Raquel Lescano2Cristina Susana Zalazar3Instituto de Desarrollo Tecnológico para la Industria Química (INTEC, UNL-CONICET), (3000) Santa Fe, ArgentinaInstituto de Desarrollo Tecnológico para la Industria Química (INTEC, UNL-CONICET), (3000) Santa Fe, ArgentinaInstituto de Desarrollo Tecnológico para la Industria Química (INTEC, UNL-CONICET), (3000) Santa Fe, Argentina|Dep. De Ciencias Naturales, FHUC-UNL, Ciudad Universitaria, (3000) Santa Fe, ArgentinaInstituto de Desarrollo Tecnológico para la Industria Química (INTEC, UNL-CONICET), (3000) Santa Fe, Argentina|Dep. Medioambiente. FICH-UNL, Ciudad Universitaria, (3000) Santa Fe, Argentina<strong>Purpose </strong>A combined treatment of composting and vermicomposting of poultry litter (PL), rice hulls (RH) and/or eucalyptus sawdust (ES) was carried out in order to obtain a high-quality organic fertilizer and avoid the environmental problems associated with the use of raw poultry manure and fresh agricultural waste materials.<br /> <strong>Methods </strong>Three composting mixtures were made at volume proportions: 1:3 RH/PL (M1); 1:2 ES/PL (M2) and 0.5:1:2 RH/ES/PL (M3). Composting (120 days) followed by vermicomposting (90 days) using earthworms (<em>Eisenia fetida</em>) were conducted during the autumn-winter season, outdoors and sheltered. Moisture content was kept at 60-70%. Physicochemical (pH, electrical conductivity, lignin, total carbon and nitrogen, organic matter, ammonium and specific cations), total microbial activity (fluorescein diacetate hydrolysis) and microbiological parameters were recorded throughout both processes. Phytotoxicity tests were lastly performed by means of <em>Lactuca sativa, </em>L. seed germination, to compare the quality of the organic fertilizers obtained.<br /> <strong>Results </strong>A sequential compost-vermicompost process enhanced the properties of the final products. Particularly, electrical conductivity was markedly lower in all vermicomposts (1.81-2.28 mS cm<sup>-1</sup>) and within the values recommended for the growth of sensitive plants; microbial activity reached 187.1-203.8 µg FDA g<sub>soil</sub><sup>-1</sup> h<sup>-1</sup>. Germination Index values in vermicomposts were greater than 60%, indicating the high quality of the products obtained, being the mixture 0.5RH:1ES:2PL, the one which showed better quality and higher maturation degree.<br /> <strong>Conclusion </strong>The system that combines both processes (composting+vermicomposting) was effective to produce a stabilized organic fertilizer from poultry litter with other waste organic materials.http://ijrowa.khuisf.ac.ir/article_672000_d0a50b5394f0df777cacf5c55793ed9c.pdforganic wastesearthwormscold season vermicompostingphysicochemical parametersmicrobial activitygermination index |
| spellingShingle | Carolina Elisabet Masin Maria Emilia Fernandez Maia Raquel Lescano Cristina Susana Zalazar Bioconversion of agro-industrial wastes: Combined compost and vermicompost processes using Eisenia fetida for stabilization of poultry litter International Journal of Recycling of Organic Waste in Agriculture organic wastes earthworms cold season vermicomposting physicochemical parameters microbial activity germination index |
| title | Bioconversion of agro-industrial wastes: Combined compost and vermicompost processes using Eisenia fetida for stabilization of poultry litter |
| title_full | Bioconversion of agro-industrial wastes: Combined compost and vermicompost processes using Eisenia fetida for stabilization of poultry litter |
| title_fullStr | Bioconversion of agro-industrial wastes: Combined compost and vermicompost processes using Eisenia fetida for stabilization of poultry litter |
| title_full_unstemmed | Bioconversion of agro-industrial wastes: Combined compost and vermicompost processes using Eisenia fetida for stabilization of poultry litter |
| title_short | Bioconversion of agro-industrial wastes: Combined compost and vermicompost processes using Eisenia fetida for stabilization of poultry litter |
| title_sort | bioconversion of agro industrial wastes combined compost and vermicompost processes using eisenia fetida for stabilization of poultry litter |
| topic | organic wastes earthworms cold season vermicomposting physicochemical parameters microbial activity germination index |
| url | http://ijrowa.khuisf.ac.ir/article_672000_d0a50b5394f0df777cacf5c55793ed9c.pdf |
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