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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
01/03/1996 |
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Data da última atualização: |
01/03/1996 |
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Autoria: |
MacKAY, A. D.; GREGG, P. E. H.; SYERS, J. K. |
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Título: |
A comparison of dicalcium phosphate and single superphosphate as phosphate sources for pasture. |
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Ano de publicação: |
1980 |
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Fonte/Imprenta: |
New Zealand Journal of Experimental Agriculture, v.8, n.1, p.7-11, 1980. |
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Idioma: |
Inglês |
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Conteúdo: |
The effect of commercially available dicalcium phosphate (DCP) and single superphos- phate on pasture production was evaluated in glasshouse and field trials. When compa- red on a unit-P basis, DCP (5.6% P) was slightly inferior (up to 10%) to superphosphate (8.6% P) in a glasshouse trial with ryegrass as the indicator plant; on a unit weight basis, DCP was only 60-70% as effective as superphosphate. No differences were obtained in the P concentration of the herbage obtained using the two materials. In a field trial on a P- responsive site, DCP and superphosphate gave similar increases in pasture production. Marked treatment differences were obtained for the P concentrations in ryegrass and clo- ver in the field trial, particularly in the first harvest and with ryegrass. No difference was ob- tained in the short-term residual effect of the two materials. The data obtained are interpre- ted in terms of the chemical and mineralogical composition, and water solubility of DCP. |
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Palavras-Chave: |
Efetividade relativa; Fertilizacao; Fertilization; Lime; Pasture; Relative effectiveness. |
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Thesagro: |
Fosfato; Pastagem. |
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Thesaurus Nal: |
dicalcium phosphate; superphosphate. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01735naa a2200265 a 4500
001 1787656
005 1996-03-01
008 1980 bl --- 0-- u #d
100 1 $aMacKAY, A. D.
245 $aA comparison of dicalcium phosphate and single superphosphate as phosphate sources for pasture.
260 $c1980
520 $aThe effect of commercially available dicalcium phosphate (DCP) and single superphos- phate on pasture production was evaluated in glasshouse and field trials. When compa- red on a unit-P basis, DCP (5.6% P) was slightly inferior (up to 10%) to superphosphate (8.6% P) in a glasshouse trial with ryegrass as the indicator plant; on a unit weight basis, DCP was only 60-70% as effective as superphosphate. No differences were obtained in the P concentration of the herbage obtained using the two materials. In a field trial on a P- responsive site, DCP and superphosphate gave similar increases in pasture production. Marked treatment differences were obtained for the P concentrations in ryegrass and clo- ver in the field trial, particularly in the first harvest and with ryegrass. No difference was ob- tained in the short-term residual effect of the two materials. The data obtained are interpre- ted in terms of the chemical and mineralogical composition, and water solubility of DCP.
650 $adicalcium phosphate
650 $asuperphosphate
650 $aFosfato
650 $aPastagem
653 $aEfetividade relativa
653 $aFertilizacao
653 $aFertilization
653 $aLime
653 $aPasture
653 $aRelative effectiveness
700 1 $aGREGG, P. E. H.
700 1 $aSYERS, J. K.
773 $tNew Zealand Journal of Experimental Agriculture$gv.8, n.1, p.7-11, 1980.
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Registro original: |
Embrapa Pantanal (CPAP) |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
28/01/2008 |
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Data da última atualização: |
21/07/2009 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Circulação/Nível: |
-- - -- |
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Autoria: |
BARBOSA-OLIVEIRA, C.; PARRON, L. M.; FREITAS, J. S.; RODRIGUES, M. S. |
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Afiliação: |
C. Barbosa Oliveira; Lucília Maria Parron, CPAC; J. S. Freitas, M.S. Rodrigues. |
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Título: |
Variação sazonal de comunidades zooplanctônicas em sub-bacias da bacia hidrográfica do Rio Preto, Médio São Francisco. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
In: ENCONTRO DE JOVENS TALENTOS DA EMBRAPA CERRADOS, 3., 2007, Planaltina, DF. Resumos apresentados. Planaltina, DF: Embrapa Cerrados, 2007. p. 29. |
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Série: |
(Embrapa Cerrados. Documentos, 176). |
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Idioma: |
Português |
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Thesagro: |
Água; Biologia Aquática. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPAC-2010/28152/1/doc-176.pdf
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Marc: |
LEADER 00674nam a2200169 a 4500
001 1566333
005 2009-07-21
008 2007 bl uuuu u00u1 u #d
100 1 $aBARBOSA-OLIVEIRA, C.
245 $aVariação sazonal de comunidades zooplanctônicas em sub-bacias da bacia hidrográfica do Rio Preto, Médio São Francisco.
260 $aIn: ENCONTRO DE JOVENS TALENTOS DA EMBRAPA CERRADOS, 3., 2007, Planaltina, DF. Resumos apresentados. Planaltina, DF: Embrapa Cerrados, 2007. p. 29.$c2007
490 $a(Embrapa Cerrados. Documentos, 176).
650 $aÁgua
650 $aBiologia Aquática
700 1 $aPARRON, L. M.
700 1 $aFREITAS, J. S.
700 1 $aRODRIGUES, M. S.
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Embrapa Cerrados (CPAC) |
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