Artículo
Fertilizacion fosfatada prolongada y contenido de elementos traza en un argiudol tipico de La Pampa ondulada
Título:
Long term phosphate fertilization and trace element contents in a typic argiudoll of the rolling pampas
Fecha de publicación:
12/2002
Editorial:
Asociación Argentina de la Ciencia del Suelo
Revista:
Ciencia del Suelo
ISSN:
0326-3169
Idioma:
Español
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Several investigations have shown that the accumulation of trace elements (TE) in soils ca be accredited to phosphorus fertilization. Our objective was to evaluate the total and bioavailable content of TE on a Typic Argiudoll fertilized with diammonia phosphate for 20 years. The work was performed on the Rolling Pampas, Argentina. The treatments were: 1) pristine plot, with no history of fertilization; 2) rotation plot (alfalfa non fertilized, with fertilized corn as a predecessor) and 3) continuous corn plot, fertilized with diammonia phosphate. Total (aqua regia) and bioavailable (DTPA) TE in soils were determined with IPC. Other soil properties were also determined. The soil total micronutrient concentrations were lower in the continuous corn plot (accredited to crop exportation). The bioavailable form of Cu, Mn y Zn were higher in this treatment, and was related to soil acidification and differences in organic C. There were not evidences of changes of soil total and bioavailable heavy metal contents, linked to the continuous fertilization. Considering the present experimental conditions, the TE accumulation is not relevant.
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Articulos(INBA)
Articulos de INST.DE INVEST. EN BIOCIENCIAS AGRICOLAS Y AMBIENTALES
Articulos de INST.DE INVEST. EN BIOCIENCIAS AGRICOLAS Y AMBIENTALES
Citación
Zubillaga, Marta Susana; Lavado, Raul Silvio; Fertilizacion fosfatada prolongada y contenido de elementos traza en un argiudol tipico de La Pampa ondulada; Asociación Argentina de la Ciencia del Suelo; Ciencia del Suelo; 20; 2; 12-2002; 110-113
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