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Revista Colombiana de Ciencias Hortícolas

Print version ISSN 2011-2173


ARANGO-OSORNO, SERGIO; MONTOYA R., JORGE; VASQUEZ, YEISÓN  and  Y. FLOR, DIANA. Physicochemical and microbiological analysis of co-composting process from biomass legume and bovine rumen. rev.colomb.cienc.hortic. [online]. 2016, vol.10, n.2, pp.345-354. ISSN 2011-2173.

ABSTRACT This paper presents the physicochemical and microbiological analysis of the compost of legume waste and bovine rumen, both individually and combined, obtained by aerobic digestion. The independent variable was the percentage by mass of legume residues, producing four treatments: 0, 25, 50 and 100%. The source of legume waste was obtained from bean pods 58%, vetch 39% and kidney-bean 3% in wet mass. The rumen was achieved from bovine stomach lavage shortly after slaughter in a slaughterhouse. Temperature, pH, moisture, ash, density, conductivity, water holding capacity (WHC), cation exchange capacity (CEC) and elements such as organic C, N, K, Ca, Mg y Zn were analyzed. The lowest carbon/nitrogen (C/N) relation of co-composting was in the waste legume-bovine rumen mixture (50-50%) with 28.51%, while the single plant legume compost was 9.14. The parameters of mass percentage of N, Mg and Zn; as well as the CEC and conductivity showed the highest values in the vegetable compost, without the presence of Salmonella, making it a potential organic amendment providing such nutrients to the soil in any crop that requires it.

Keywords : aerobic codigestion; legume waste; bovine rumen; C/N ratio; organic amendments.

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