Evaluación de la capacidad de dos especies (Euphorbaceaes) para la degradación de plaguicidas en el suelo del barrio San José de la parroquia San Isidro de Patulú del cantón Guano.

Abstract

The objective of the present titration work was to evaluate the capacity of two Euphorbacea species for the degradation of pesticides in the soil of the San José neighborhood of the San Isidro de Patulú parish in Guano canton, the methodology used for soil sampling was in zig - zag used by the National Autonomous Institute of Agricultural Research (INIAP). The samples obtained from these were analyzed in the LASA laboratory in which the texture, particle fraction, humidity, pH, organic matter, total nitrogen, sulfur, calcium, phosphorus, magnesium and potassium were analyzed, for which different concentrations were supplied. in parts per million solution of organophosphorus pesticides in plants of the species Euphorbia Pulcherrima also known as Easter Flower and Euphorbia Cotinifolia known as Red Dairy, to observe which species is the most efficient in the decontamination of soils, resulting in Euphorbia Cotinifolia being the species with the capacity to degrade pesticide in the soil and has resistance to concentrations of organophosphorus pesticides, since the contaminants present at the beginning of the study in the soil were greater than 0.01 mg / kg and after applying the treatment the values ​​were reduced to a percentage less than 0.01 mg / kg, being the most optimal in soil sanitation a Crop It was proved that the species Euphorbia Cotinifolia is apt to be used in processes of degradation of organophosphorus pesticides by the phytoremediation technique, in addition to reducing costs and contributing positively to the environment. Therefore, it is recommended to continue carrying out studies on the mechanism of root absorption in the species Euphorbia Cotinifolia to know the capacity of hyperaccumulation that may have to degrade other types of pesticides.