Short-term amendment of biosolid on agricultural soil: effects on C and N mineralization and microbial activity
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2022
- handle: 10670/1.qklvjz
- 0188-6266
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Acta Universitaria
Mots-clés
Multidisciplinarias (Ciencias Sociales) co emissions Urease activity microbial biomass nitrogen availableSujets proches
Soil Mould, Vegetable Vegetable mold Earth (Soils) Mold, Vegetable Biosolids Sludge, SewageCiter ce document
Miriam del Rocío Medina-Herrera et al., « Short-term amendment of biosolid on agricultural soil: effects on C and N mineralization and microbial activity », Acta Universitaria, ID : 10670/1.qklvjz
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Résumé
"Adding biosolids to agricultural soils can improve its quality through increased storage of C and N. A study to analyze the short-term impact of the addition of biosolids on the release of nutrients and the microbial activity in agricultural soil was carried out. The microbial biomass C (MB-C), urease activity (UA), and mineralization of N and C at different application rates of biosolids were evaluated (0 mg, 100mg and 200 mg of N-NH4 + kg-1). In addition, a biosolid-only treatment was tested. It was observed an increase in C and N mineralization, NH3 volatilization, and MB-C content, according to the application rate of biosolids. In biosolid treatments, UA increased 100% on average in the first seven days of incubation. These results suggest that the nutrient content in the soil is improved and microbial activity is positively stimulated."