Suelos volcánicos de Nicaragua, 2: Contenido y distribución de azufre
No hay miniatura disponible
Fecha
Autores
Título de la revista
ISSN de la revista
Título del volumen
Editor
Instituto Interamericano de Cooperación para la Agricultura (IICA)
Resumen
Descripción
The studied soils are derived from volcanic materials and belong to the Pacific Region of Nicaragua. They have high temperatures (22–37°C) and annual rainfall fluctuations between 900 and 1,900 mm, belonging to the very dry and dry tropical forest formations according to the Holdridge system.
Total S values (4964 and 1,3249 ppm) have been considered rather low for an area influenced by volcanic materials. The organic S percentage varies from 7.95 to 31.41, which means a low level. Nevertheless, this is the most important fraction because soil reserve S and exchangeable S depend on it. Inorganic S oscillates between 48.5 and 92.05 percent. Exchangeable S concentration is low, and calcium phosphate solution is considered the best extractor for these soils. Soil reserve S has an average value of 22.18 percent
The highest concentration of Organic-S is found near volcanoes, and it is located at 10 cm depth. Soil reserve-S and exchangeable SOS extracted with PO, H.K. show similar behavior, with respect to distance from the volcanoes and depth profile.
Palabras clave
Suelo, Azufre||sulfur||Enxofre||soufre, Elementos quimicos, Distribución geográfica||geographical distribution||distribuição geográfica||distribution géographique, Nicaragua||Nicaragua||Nicarágua||Nicaragua, Sede Central