Microbial biomass in upland soils of the Central Amazon under different plant covers.
No hay miniatura disponible
Fecha
Autores
Título de la revista
ISSN de la revista
Título del volumen
Editor
Resumen
Descripción
The objective of this study was to evaluate the microbial activity of carbon, nitrogen and phosphorus resulting from the replacement of the primary forest with Brachiaria brizantha, Hevea, cupuaçu, citrus and secondary forest. There was no increase in soil fertility under secondary forest, but in the pasture had an increase in the stock of C and N and high C/N ratios, the inverse occurred with C-microbial biomass. The primary forest had the highest values of C, N and P of the microbial biomass and the lowest metabolic quotient. The Hevea was the plant cover with the smallest changes of C in the soil.
Palabras clave
Sedimentary zeolite, Parnaíba Basin, Plant nutrients, Nutrient attachment, Release, Solo, Carbono, Nitrogênio, Fósforo, Brachiaria brizantha, Fertilidade do solo, Planta de cobertura, Biomassa