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| Monte,Marisa B.M.; Middea,Antonieta; Paiva,Paulo R.P.; Bernardi,Alberto C.C.; Rezende,Nélio G.A.M.; Baptista-Filho,Milton; Silva,Marcelo G.; Vargas,Helion; Amorim,Helio S.; Souza-Barros,Fernando de. |
| This report describes the characterization of a sedimentary occurrence from the Parnaíba Basin, Brazil, containing the zeolite stilbite intertwined with smectitic clay mineral. The head samples from different sites present a wide content range of the zeolitic phase - 15% to 50%. The use of simple separation techniques - conventional gravitic treatments - yields concentrates containing about 67% of the zeolitic component. Assays with the amendments of these concentrates with plant nutrients yield release rates matching those reported for similar commercial products. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sedimentary zeolite; Parnaíba Basin; Plant nutrients; Nutrient attachment and release. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000400003 |
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