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Universidad Nacional de Trujillo (2022)

Influencia de las tasas de aplicación de lodos secos de una PTAR en el mejoramiento agrícola de suelos áridos, Trujillo – Perú

Lopez Colonia, Alexis Guillermo

Titre : Influencia de las tasas de aplicación de lodos secos de una PTAR en el mejoramiento agrícola de suelos áridos, Trujillo – Perú

Auteur : Lopez Colonia, Alexis Guillermo

Université de soutenance : Universidad Nacional de Trujillo

Grade : Maestría en Ciencias, mención Gestión Ambiental 2022

Résumé
In the present investigation, the great potential of dry sludge from WWTPs as materials for soil amendment was taken advantage of. Thus, it was considered as a general objective to evaluate the influence of the dry sludge application rates of a WWTP in the agricultural improvement of arid soils. For which sampling of the arid soil and dry mud was carried out, to which the chemical and microbiological analysis of the content of organic matter, N-P-K, and chromium was carried out, as well as the experimental groups after the harvest. For this, four formulations were prepared at different rates of application of stabilized dry sludge-arid soil, (2.83 ; 4.24 ; 5.18 and 6.60 ton ST Biosolids/ha arid soil) and a control. Vigna unguiculata (L) Walp was sown in these "castilla beans" observing their growth and development for 70 days. Concluding that the application rates of 5.18 and 6.60 (ton ST Biosolid / ha arid soil), favorably influence the improvement of arid soils, presenting a significant increase in the levels of nitrogen and organic matter and NPK in relation to the soil. untreated aggregate. Better yields of the Vigna unguiculata (L) Walp “castilla bean” crop were also obtained with these treatments, with production of 1944.36 and 1946 kg of dry beans/ha. respectively.

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Page publiée le 10 novembre 2022