Resumen

GUERRERO-ORTIZ, Pilar Lourdes et al. Respiration of CO₂ as an indicator of microbial activity in organic fertilizers of lupinus. Terra Latinoam [online]. 2012, vol.30, n.4, pp.355-362. ISSN 2395-8030.

To study mineralization of lupinus organic fertilizers, a 30 day trial of incubation was established under controlled humidity and temperature. The fertilizers were made of mixtures of Lupinus montanus Kunth: green, in mature compost and vermicompost mixed with sandy loam soil (50 g compost and vermicompost in 100 g soil, and 40 g green manure in 100 g soil). The results obtained indicated that fresh lupinus released the most CO2, while the compost and vermicompost had lower microbial biomass action. This can be attributed to organic fertilizers in different stages of decomposition, each with a biological process in which the physical collapse and biochemical processing of complex organic molecules of dead materials produced simpler inorganic molecules (Juma, 1998).

Palabras llave : biotransformation; mineralization; oxidation.

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