Technical Evaluation of Glauconies as Alternative Potassium Fertilizer from the Salamanca Formation, Patagonia, Southwest Argentina

The aim of this work was to evaluate the Salamanca Formation greensands as an alternative potassium fertilizer to KCl. Glauconitic pellets from this formation tend to naturally concentrate in 600-250 μm (BS 250) and 250-125 μm (BS 125) fractions. After dry sieving and magnetic separation, these frac...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Franzosi, C., Castro, L.N., Celeda, A.M.
Formato: JOUR
Materias:
Alternative potassium fertilizer
Argentina
Greensands
Magnetic concentration process
Salamanca Formation
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_15207439_v23_n3_p311_Franzosi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_15207439_v23_n3_p311_Franzosi
record_format dspace
spelling todo:paper_15207439_v23_n3_p311_Franzosi2023-10-03T16:20:35Z Technical Evaluation of Glauconies as Alternative Potassium Fertilizer from the Salamanca Formation, Patagonia, Southwest Argentina Franzosi, C. Castro, L.N. Celeda, A.M. Alternative potassium fertilizer Argentina Greensands Magnetic concentration process Salamanca Formation The aim of this work was to evaluate the Salamanca Formation greensands as an alternative potassium fertilizer to KCl. Glauconitic pellets from this formation tend to naturally concentrate in 600-250 μm (BS 250) and 250-125 μm (BS 125) fractions. After dry sieving and magnetic separation, these fractions were used for chemical, lixiviation, and specific surface analyses and agronomic evaluations. Two concentrated products were obtained: GL250c (600-250 μm) and GL125c (250-125 μm) representing 40.9 % of total sample. GL250c contains 2.97 % K 2 O, and GL125c contains 4.05 % K 2 O, representing 27 and 60 % increase in K-content compared to the bulk sample. Grain size of both concentrates decreased significantly through lixiviation tests. Potassium release curves from lixiviation waters show that K-liberation from GL250c was more effective in the first 15 days but decreased after that whereas liberation from GL125c continued to increase after 15 days probably due to higher K-content (36 % higher than GL250c). Specific area could have influenced liberation rates because after leaching it increased 27 % for the finer fraction and by only 16 % for the coarser one. From agronomic assays, measured over 75 days with five harvests, the first four harvests yield best results from KCl probably due to fast K-liberation rates from the salt. However, after overall harvests, fertilization efficiency using either GL250c or GL125c was very similar to and slightly higher than KCl fertilization. As equivalent results were found using either GL250c or GL125c, sieving to obtain these fractions seems not necessary. The results indicate that greensands from the Salamanca Formation are effective slow release alternative K source for fertilizers with low cost of production and treatment compared to operation costs required for mining K soluble salts at depth. © 2014 International Association for Mathematical Geosciences. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15207439_v23_n3_p311_Franzosi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Alternative potassium fertilizer
Argentina
Greensands
Magnetic concentration process
Salamanca Formation
spellingShingle Alternative potassium fertilizer
Argentina
Greensands
Magnetic concentration process
Salamanca Formation
Franzosi, C.
Castro, L.N.
Celeda, A.M.
Technical Evaluation of Glauconies as Alternative Potassium Fertilizer from the Salamanca Formation, Patagonia, Southwest Argentina
topic_facet Alternative potassium fertilizer
Argentina
Greensands
Magnetic concentration process
Salamanca Formation
description The aim of this work was to evaluate the Salamanca Formation greensands as an alternative potassium fertilizer to KCl. Glauconitic pellets from this formation tend to naturally concentrate in 600-250 μm (BS 250) and 250-125 μm (BS 125) fractions. After dry sieving and magnetic separation, these fractions were used for chemical, lixiviation, and specific surface analyses and agronomic evaluations. Two concentrated products were obtained: GL250c (600-250 μm) and GL125c (250-125 μm) representing 40.9 % of total sample. GL250c contains 2.97 % K 2 O, and GL125c contains 4.05 % K 2 O, representing 27 and 60 % increase in K-content compared to the bulk sample. Grain size of both concentrates decreased significantly through lixiviation tests. Potassium release curves from lixiviation waters show that K-liberation from GL250c was more effective in the first 15 days but decreased after that whereas liberation from GL125c continued to increase after 15 days probably due to higher K-content (36 % higher than GL250c). Specific area could have influenced liberation rates because after leaching it increased 27 % for the finer fraction and by only 16 % for the coarser one. From agronomic assays, measured over 75 days with five harvests, the first four harvests yield best results from KCl probably due to fast K-liberation rates from the salt. However, after overall harvests, fertilization efficiency using either GL250c or GL125c was very similar to and slightly higher than KCl fertilization. As equivalent results were found using either GL250c or GL125c, sieving to obtain these fractions seems not necessary. The results indicate that greensands from the Salamanca Formation are effective slow release alternative K source for fertilizers with low cost of production and treatment compared to operation costs required for mining K soluble salts at depth. © 2014 International Association for Mathematical Geosciences.
format JOUR
author Franzosi, C.
Castro, L.N.
Celeda, A.M.
author_facet Franzosi, C.
Castro, L.N.
Celeda, A.M.
author_sort Franzosi, C.
title Technical Evaluation of Glauconies as Alternative Potassium Fertilizer from the Salamanca Formation, Patagonia, Southwest Argentina
title_short Technical Evaluation of Glauconies as Alternative Potassium Fertilizer from the Salamanca Formation, Patagonia, Southwest Argentina
title_full Technical Evaluation of Glauconies as Alternative Potassium Fertilizer from the Salamanca Formation, Patagonia, Southwest Argentina
title_fullStr Technical Evaluation of Glauconies as Alternative Potassium Fertilizer from the Salamanca Formation, Patagonia, Southwest Argentina
title_full_unstemmed Technical Evaluation of Glauconies as Alternative Potassium Fertilizer from the Salamanca Formation, Patagonia, Southwest Argentina
title_sort technical evaluation of glauconies as alternative potassium fertilizer from the salamanca formation, patagonia, southwest argentina
url http://hdl.handle.net/20.500.12110/paper_15207439_v23_n3_p311_Franzosi
work_keys_str_mv AT franzosic technicalevaluationofglauconiesasalternativepotassiumfertilizerfromthesalamancaformationpatagoniasouthwestargentina
AT castroln technicalevaluationofglauconiesasalternativepotassiumfertilizerfromthesalamancaformationpatagoniasouthwestargentina
AT celedaam technicalevaluationofglauconiesasalternativepotassiumfertilizerfromthesalamancaformationpatagoniasouthwestargentina
_version_ 1807318414732034048

Ejemplares similares