The glauconitic levels of the Salamanca Formation, Chubut: Its agronomic effectiveness as a potassium fertilizer alternative

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The Maastrichtian-Early Palaeocene Salamanca Formation and equivalent marine sequences show several glaucony levels, which could be used as a source of potassium and could partially replace current fertilizer requirements met from import. First agronomic assays are shown comparing the efficiency of...

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Autores principales: Castro, L.N., Scasso, R.A., Branzini, A., Zubillaga, M.S., Fazio, A.M., Tourn, S.M., Zubillaga, M.M.
Formato: Artículo publishedVersion
Publicado: 2010
Materias:
Glauconitic sandstones
Potassium alternative sources
Potassium fertilizer
Salamanca Formation
agronomy
bioassay
feldspar
fertilizer application
glauconite
irrigation
leaching
potassium
sandstone
soil remediation
Argentina
Chubut
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00044822_v66_n3_p391_Castro
http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00044822_v66_n3_p391_Castro_oai
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Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires
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spelling I28-R145-paper_00044822_v66_n3_p391_Castro_oai2020-10-19 Castro, L.N. Scasso, R.A. Branzini, A. Zubillaga, M.S. Fazio, A.M. Tourn, S.M. Zubillaga, M.M. 2010 The Maastrichtian-Early Palaeocene Salamanca Formation and equivalent marine sequences show several glaucony levels, which could be used as a source of potassium and could partially replace current fertilizer requirements met from import. First agronomic assays are shown comparing the efficiency of greensands (GL) with a traditional potassium fertilizer (KCl). Prospection and sampling took place in the heads of Rio Chico to east of Lago Colhué Huapi, Chubut, where glauconitic levels thickness reach to 20m. This research was separated in phases: phase 1, prospection, sampling, and sedimentological and chemical routine analyses, phase 2a, concentration and ore treatment assays, and phase 2b, agronomic assays. This last phase, was done in culture chamber, with 125 μm and 250 μm fractions (2,85 and 2,82 % K 2 O respectively) and KCl. Varying the dose, seven treatments were completed. In successive harvests (four in total) was observed that GL1 and GL2 (125), did not present a significantly differential behavior with the control. Both treatments of GL 250 μm showed major accumulated biomass, overcoming the control in 44 and 60 % respectively. As conclusion, better results were obtained by 250 μm overcoming even to the KCl fertilization. Probably the major participation of K feldspars in the 125 μm and fast leaching of K in this fraction during successive irrigations of soil would originate the minor observed yield. The great areal extension of the Salamanca Formation and the continuity of the glauconitic levels encourage continuing the evaluation as fertilizer or amendment. Fil:Castro, L.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Scasso, R.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Tourn, S.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. application/pdf http://hdl.handle.net/20.500.12110/paper_00044822_v66_n3_p391_Castro info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar Rev. Asoc. Geol. Argent. 2010;66(3):391-398 Glauconitic sandstones Potassium alternative sources Potassium fertilizer Salamanca Formation agronomy bioassay feldspar fertilizer application glauconite irrigation leaching potassium sandstone soil remediation Argentina Chubut The glauconitic levels of the Salamanca Formation, Chubut: Its agronomic effectiveness as a potassium fertilizer alternative info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00044822_v66_n3_p391_Castro_oai
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-145
collection Repositorio Digital de la Universidad de Buenos Aires (UBA)
topic Glauconitic sandstones
Potassium alternative sources
Potassium fertilizer
Salamanca Formation
agronomy
bioassay
feldspar
fertilizer application
glauconite
irrigation
leaching
potassium
sandstone
soil remediation
Argentina
Chubut
spellingShingle Glauconitic sandstones
Potassium alternative sources
Potassium fertilizer
Salamanca Formation
agronomy
bioassay
feldspar
fertilizer application
glauconite
irrigation
leaching
potassium
sandstone
soil remediation
Argentina
Chubut
Castro, L.N.
Scasso, R.A.
Branzini, A.
Zubillaga, M.S.
Fazio, A.M.
Tourn, S.M.
Zubillaga, M.M.
The glauconitic levels of the Salamanca Formation, Chubut: Its agronomic effectiveness as a potassium fertilizer alternative
topic_facet Glauconitic sandstones
Potassium alternative sources
Potassium fertilizer
Salamanca Formation
agronomy
bioassay
feldspar
fertilizer application
glauconite
irrigation
leaching
potassium
sandstone
soil remediation
Argentina
Chubut
description The Maastrichtian-Early Palaeocene Salamanca Formation and equivalent marine sequences show several glaucony levels, which could be used as a source of potassium and could partially replace current fertilizer requirements met from import. First agronomic assays are shown comparing the efficiency of greensands (GL) with a traditional potassium fertilizer (KCl). Prospection and sampling took place in the heads of Rio Chico to east of Lago Colhué Huapi, Chubut, where glauconitic levels thickness reach to 20m. This research was separated in phases: phase 1, prospection, sampling, and sedimentological and chemical routine analyses, phase 2a, concentration and ore treatment assays, and phase 2b, agronomic assays. This last phase, was done in culture chamber, with 125 μm and 250 μm fractions (2,85 and 2,82 % K 2 O respectively) and KCl. Varying the dose, seven treatments were completed. In successive harvests (four in total) was observed that GL1 and GL2 (125), did not present a significantly differential behavior with the control. Both treatments of GL 250 μm showed major accumulated biomass, overcoming the control in 44 and 60 % respectively. As conclusion, better results were obtained by 250 μm overcoming even to the KCl fertilization. Probably the major participation of K feldspars in the 125 μm and fast leaching of K in this fraction during successive irrigations of soil would originate the minor observed yield. The great areal extension of the Salamanca Formation and the continuity of the glauconitic levels encourage continuing the evaluation as fertilizer or amendment.
format Artículo
Artículo
publishedVersion
author Castro, L.N.
Scasso, R.A.
Branzini, A.
Zubillaga, M.S.
Fazio, A.M.
Tourn, S.M.
Zubillaga, M.M.
author_facet Castro, L.N.
Scasso, R.A.
Branzini, A.
Zubillaga, M.S.
Fazio, A.M.
Tourn, S.M.
Zubillaga, M.M.
author_sort Castro, L.N.
title The glauconitic levels of the Salamanca Formation, Chubut: Its agronomic effectiveness as a potassium fertilizer alternative
title_short The glauconitic levels of the Salamanca Formation, Chubut: Its agronomic effectiveness as a potassium fertilizer alternative
title_full The glauconitic levels of the Salamanca Formation, Chubut: Its agronomic effectiveness as a potassium fertilizer alternative
title_fullStr The glauconitic levels of the Salamanca Formation, Chubut: Its agronomic effectiveness as a potassium fertilizer alternative
title_full_unstemmed The glauconitic levels of the Salamanca Formation, Chubut: Its agronomic effectiveness as a potassium fertilizer alternative
title_sort glauconitic levels of the salamanca formation, chubut: its agronomic effectiveness as a potassium fertilizer alternative
publishDate 2010
url http://hdl.handle.net/20.500.12110/paper_00044822_v66_n3_p391_Castro
http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00044822_v66_n3_p391_Castro_oai
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