Influencia de las tasas de aplicación de lodos secos de una PTAR en el mejoramiento agrícola de suelos áridos, Trujillo - Perú
No Thumbnail Available
Date
2022
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Universidad Nacional de Trujillo
Abstract
En la presente investigación se aprovechó el gran potencial que tienen los lodos secos de las PTAR como materiales para enmienda de suelos. Es así, que se consideró como objetivo general evaluar la influencia de las tasas de aplicación de lodos secos de una PTAR en el mejoramiento agrícola de suelos áridos. Para lo cual se realizaron muestreos del suelo árido y lodo seco, a los cuales se les realizó el análisis químico y microbiológica del contenido de materia orgánica, N-P-K, y cromo, así como a los grupos experimentales luego de la cosecha. Para ello, se elaboraron cuatro formulaciones a diferente tasa de aplicación de lodo seco estabilizado- suelo árido, (2,83; 4,24; 5,18 y 6,60 ton ST Biosólido /ha suelo árido) y un testigo. Se sembró en estos “frijol castilla” Vigna unguiculata (L) Walp observando su crecimiento y desarrollo durante 70 días. Concluyéndose que las tasas de aplicación de 5,18 y 6,60 (ton ST Biosólido /ha suelo árido), influyen favorablemente en el mejoramiento de suelos áridos presentando un incrementó significativo de los niveles de nitrógeno y materia orgánica y N-P-K en relación al suelo árido sin tratar. También se obtuvo con dichos tratamientos mejores rendimientos del cultivo Vigna unguiculata (L) Walp “frijol castilla” con producción de 1944,36 y 1946 kg de frijol seco/ha. respectivamente.
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.
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.
Description
Keywords
Biosólido, Suelo árido, PTAR