Alpa-biol es un bioproducto desarrollado por el Departamento de Biología de la Universidad Nacional Agraria La Molina vía fermentación homoláctica a partir de heces de alpaca en condiciones de laboratorio, cuyo proceso de elaboración podría verse afectado por factores ambientales adversos. El objetivo del estudio fue evaluar la eficiencia de la fermentación homoláctica en condiciones alto andinas, replicando la elaboración del Alpa-biol a mediana escala en la Sociedad Agrícola de Interés Social (SAIS) Pachacútec (Junín). Para ello se emplearon heces de alpaca, lactosuero, melaza y el consorcio microbiano benéfico “B-Lac” en proporción 40:40:15:5, respectivamente, monitoreándose diariamente el pH hasta alcanzar el valor más bajo. Se realizaron análisis físico[1]químicos y microbiológicos al inicio y después de 1 año a fin de determinar su estabilidad en el tiemp...

Purpose: This research aimed at compost quality optimization through Plackett-Burman’s design application.This statistical method was used to identify and evaluate key factors that impact compost quality and determine its optimal levels. Method: Eight experiments were carried out with variables such as leachate recirculation, Carbon/Nitrogen ratio,manure type, bacterial and fungi incorporation, type of plant material, and compost pile height. Results: Obtained results revealed significant influence of guinea pig manure in compost quality, improving pH and electric conductivity (dS∙m-1) values, as well as its influence on purple corn fresh and dry weight increase. However, the use of guinea pig manure can increase arsenic, mercury, and lead compost levels, but within the range allowed by Peruvian technical standards. Leachate recirculation showed significant effect on compost humidity...

Purpose: This research aimed at compost quality optimization through Plackett-Burman’s design application.This statistical method was used to identify and evaluate key factors that impact compost quality and determine its optimal levels. Method: Eight experiments were carried out with variables such as leachate recirculation, Carbon/Nitrogen ratio,manure type, bacterial and fungi incorporation, type of plant material, and compost pile height. Results: Obtained results revealed significant influence of guinea pig manure in compost quality, improving pH and electric conductivity (dS∙m-1) values, as well as its influence on purple corn fresh and dry weight increase. However, the use of guinea pig manure can increase arsenic, mercury, and lead compost levels, but within the range allowed by Peruvian technical standards. Leachate recirculation showed significant effect on compost humidity...