Physical-chemical characterization of BIOL-Y23 obtained of coffee waste in the Tercer Frente municipality
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Abstract
The decrease in agricultural yields due to edaphoclimatic and economic factors has encouraged the use of organic fertilizers. This study aimed to characterize Biol-Y23 made from coffee waste in the Tercer Frente municipality, highlighting its potential as a sustainable biofertilizer. Biol-Y23 was prepared by mixing coffee pulp, bovine manure, bat guano, limestone flour, plant ash, worm humus leachate, native microorganisms and water, following an anaerobic fermentation for 60 days. The physicochemical characterization included analysis of pH, electrical conductivity, organic matter, nitrogen, phosphorus, potassium, calcium, sodium and other micronutrients using standard laboratory techniques. The results showed that Biol-Y23 had a pH of 4.83, suitable for coffee cultivation, and a high electrical conductivity (14.65 dS/m). A high content of organic matter (13.56 g/L) and essential macronutrients such as nitrogen (584.60 mg/L), phosphorus (201.80 mg/L) and potassium (1983.33 mg/L) was found. Significant concentrations of calcium and sodium were also observed, which shows its potential to improve soil fertility and health. In conclusion, Biol-Y23 represents a sustainable strategy to reduce the use of chemical fertilizers and improve soil quality, promoting plant-microbiota interaction and the recovery of degraded soils.
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