Las actividades mineras y metalúrgicas practicadas en la región Junín, Perú han contaminado el suelo, el aire y el agua. El uso de plantas es una de las estrategias para la remediación de suelos contaminados con metales pesados. Sin embargo, son pocos los estudios sobre fitorremediación aplicando nitrógeno. El objetivo principal de este estudio fue evaluar la capacidad extractora del Plomo (Pb) de la Brassica campestris al adicionar Nitrógeno (N) en forma de urea al sustrato contaminado con 2800 mg Pb/kg. Se realizaron 4 tratamientos; uno sembrado solo con la especie, y los otros tres sembrados con la especie y adicionándole 16, 32 y 48 mM de Nitrógeno respectivamente y cada uno con 3 repeticiones. Después de 3 meses de sembradas las plantas y de haberlas regado, se midió la concentración de Pb en la parte aérea y la raíz, lo cual dió como resultado que el Nitrógeno aña...

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...