Výsledky vyhledávání - "Irio Fernando de Freitas"

Akademický článek

Phosphorus extracted by ion exchange resins and mehlich-1 from oxisols (latosols) treated with different phosphorus rates and sources for varied soil-source contact periods

Autor: Irio Fernando de Freitas, Roberto Ferreira Novais, Ecila Mercês de Albuquerque Villani, Sarah Vieira Novais

Publikováno v: Revista Brasileira de Ciência do Solo, Vol 37, Iss 3, Pp 667-677 (2013)

Despite the large number of studies addressing the quantification of phosphorus (P) availability by different extraction methods, many questions remain unanswered. The aim of this paper was to compare the effectiveness of the extractors Mehlich-1, An

Externí odkaz: https://doaj.org/article/358e249aed794cbebc20eb15b25aee42

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LOSS OF EXTRACTION CAPACITY OF MEHLICH-1 AND MONOCALCIUM PHOSPHATE AS A VARIABLE OF REMAINING P AND ITS RELATIONSHIP TO CRITICAL LEVELS OF SOIL PHOSPHORUS AND SULFUR

Autor: Leônidas Carrijo Azevedo Melo, Leonardus Vergütz, Sarah Vieira Novais, Edson Marcio Mattiello, Roberto Ferreira Novais, Irio Fernando de Freitas

Publikováno v: Revista Brasileira de Ciência do Solo, Volume: 39, Issue: 4, Pages: 1079-1087, Published: AUG 2015
LOCUS Repositório Institucional da UFV
Universidade Federal de Viçosa (UFV)
instacron:UFV
Revista Brasileira de Ciência do Solo, Vol 39, Iss 4, Pp 1079-1087 (2015)
Revista Brasileira de Ciência do Solo v.39 n.4 2015
Revista Brasileira de Ciência do Solo
Sociedade Brasileira de Ciência do Solo (SBCS)
instacron:SBCS

O extrator Mehlich-1 (M-1), assim como o Fosfato Monocálcico em ácido acético (FMCa), tem na acidez e na troca de ligantes - seja do sulfato do extrator pelo fosfato do solo ou do fosfato do extrator pelo sulfato do solo - os mecanismos de extraç

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b4ba0c8fd48717486706eb5ee453fda
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000401079&lng=en&tlng=en

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Phosphorus extracted by ion exchange resins and mehlich-1 from oxisols (latosols) treated with different phosphorus rates and sources for varied soil-source contact periods

Autor: Roberto Ferreira Novais, Ecila Mercês de Albuquerque Villani, Irio Fernando de Freitas, Sarah Vieira Novais

Publikováno v: LOCUS Repositório Institucional da UFV
Universidade Federal de Viçosa (UFV)
instacron:UFV
Revista Brasileira de Ciência do Solo v.37 n.3 2013
Revista Brasileira de Ciência do Solo
Sociedade Brasileira de Ciência do Solo (SBCS)
instacron:SBCS
Revista Brasileira de Ciência do Solo, Vol 37, Iss 3, Pp 667-677 (2013)

Apesar do grande número de publicações voltadas para a avaliação da disponibilidade de fósforo (P) por diferentes métodos de extração, persistem ainda muitas indagações sobre o assunto. O objetivo deste trabalho foi comparar os extratores

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c0d70e074a204493ee885f200a517ab
http://www.locus.ufv.br/handle/123456789/14326

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Akademický článek

LOSS OF EXTRACTION CAPACITY OF MEHLICH-1 AND MONOCALCIUM PHOSPHATE AS A VARIABLE OF REMAINING P AND ITS RELATIONSHIP TO CRITICAL LEVELS OF SOIL PHOSPHORUS AND SULFUR

Autor: Sarah Vieira Novais, Edson Marcio Mattiello, Leonardus Vergutz, Leônidas Carrijo Azevedo Melo, Írio Fernando de Freitas, Roberto Ferreira Novais

Publikováno v: Revista Brasileira de Ciência do Solo, Vol 39, Iss 4, Pp 1079-1087 (2015)

The Mehlich-1 (M-1) extractant and Monocalcium Phosphate in acetic acid (MCPa) have mechanisms for extraction of available P and S in acidity and in ligand exchange, whether of the sulfate of the extractant by the phosphate of the soil, or of the pho

Externí odkaz: https://doaj.org/article/d88800d8bf304cc4b1e6d97cfbc6dc97

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