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Abstract:

Argentina, a large country with an important agriculture industry, needs an ever-increasing amount of phosphorus and potassium, as essential elements for plant growth. Current requirements are met from imports, but potential resources exist in Argentina. For example, several phosphatic occurrences are known in paleo-marine basins, the most significant of which are in Tertiary units in Patagonia. In addition, two types of potassium deposits are also known in Argentina: evaporite deposits in the Neuquén Basin at depths of 750 m to 1500 m contain 22 to 25 wt% K2O equivalent; and glauconitic sandstone containing about 6 wt% K2O has been identified in Patagonia. Several experiments were undertaken to test unprocessed phosphate rocks as slow-release, direct-application fertilizers, with good results. In addition, it is proposed that direct application of glauconitic sands would provide an efficient and economic alternative source of potassium. Tests with glauconite samples are still in progress. The existence of both phosphate and glauconitic rocks in Patagonia suggests that development of an extractive industry for these materials would not only help Argentina approach self-sufficiency in fertilizer usage, but also assist in the socio-economic development of this region. © 2004 Canadian Institute of Mining, Metallurgy and Petroleum. All rights reserved.

Registro:

Documento: Artículo
Título:Direct application of phosphate rocks and glauconite as alternative sources of fertilizer in Argentina
Autor:Castro, L.; Tourn, S.
Filiación:Departamento de Ciencias Geológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Palabras clave:alternative agriculture; fertilizer; glauconite; phosphate rock; Argentina; Patagonia; South America
Año:2003
Volumen:12
Número:1-4
Página de inicio:71
Página de fin:78
DOI: http://dx.doi.org/10.2113/0120071
Título revista:Exploration and Mining Geology
Título revista abreviado:Explor. Min. Geol.
ISSN:09641823
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09641823_v12_n1-4_p71_Castro

Referencias:

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Citas:

---------- APA ----------
Castro, L. & Tourn, S. (2003) . Direct application of phosphate rocks and glauconite as alternative sources of fertilizer in Argentina. Exploration and Mining Geology, 12(1-4), 71-78.
http://dx.doi.org/10.2113/0120071
---------- CHICAGO ----------
Castro, L., Tourn, S. "Direct application of phosphate rocks and glauconite as alternative sources of fertilizer in Argentina" . Exploration and Mining Geology 12, no. 1-4 (2003) : 71-78.
http://dx.doi.org/10.2113/0120071
---------- MLA ----------
Castro, L., Tourn, S. "Direct application of phosphate rocks and glauconite as alternative sources of fertilizer in Argentina" . Exploration and Mining Geology, vol. 12, no. 1-4, 2003, pp. 71-78.
http://dx.doi.org/10.2113/0120071
---------- VANCOUVER ----------
Castro, L., Tourn, S. Direct application of phosphate rocks and glauconite as alternative sources of fertilizer in Argentina. Explor. Min. Geol. 2003;12(1-4):71-78.
http://dx.doi.org/10.2113/0120071