Resumo

RAMIREZ, Luis Arturo Gil et al. Biofertilizante “biol”: caracterización física, química y microbiológica. Rev. Inv. Cs. Agro. y Vet. [online]. 2023, vol.7, n.20, pp.336-345.  Epub 20-Maio-2023. ISSN 2664-0902.  https://doi.org/10.33996/revistaalfa.v7i20.219.

Biol is an organic fertilizer of liquid consistency that is produced in a biodigester from the fermentation of animal manure and plant residues, this product is currently used as a foliar fertilizer, which promotes the development and healthy growth of various crops. The objective of this research is to evaluate the physicochemical and microbiological characteristics of the biol from the Experimental Station of Applied Biochemistry of the Faculty of Biological Sciences of the National University of Trujillo (E.E.B. A-CC.BB-UNT). To obtain the data, a conductivity meter, pH meter, atomic absorption spectroscopy method, reactive phosphorus method, Kjeldahl method, methylene blue method and the Most Probable Number method were used and the following data were obtained: 16.32 mS cm-1 for electrical conductivity, 6. 90 for pH, 290.0 mgL-1, 17.78 mgL-1, 111.7 mgL-1, 153.2 mgL-1, 0.360 mgL-1, 0.080 mgL-1, 1.530 mgL-1, 0.300 mgL-1, 0.140 mgL-1 and 0.017 mgL-1, for nitrogen, phosphorus, potassium, magnesium, sulfides, copper, iron, manganese, zinc, and cadmium, respectively; for lead and chromium, values lower than 0.005 mgL-1 were obtained; The absence of total and fecal coliforms (< 1.8 NMP/100 mL) was also reported. The biool of the present study has the physicochemical and microbiological characteristics for optimal growth of various crops, as well as to be used as an alternative solution to conventional agrochemicals that have a negative impact on the agricultural sector and the environment.

Palavras-chave : Biol; Biofertilizer; Biodigester; Characterization; Organic.

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