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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
25/06/2007 |
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Data da última atualização: |
13/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
QUEIROZ, J. F. de; NICOLELLA, G.; WOOD, C. W.; BOYD, C. E. |
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Afiliação: |
JULIO FERRAZ DE QUEIROZ, CNPMA; GILBERTO NICOLELLA, CNPMA; CHARLES WESLEY WOOD, USA; Claude Elson Boyd CLAUDE ELSON BOYD, USA. |
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Título: |
Lime application methods, water and bottom soil acidity in fresh water fish ponds. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Scientia Agricola, Piracicaba, v. 61, n. 5, set./out. p.469-475, 2004. |
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Idioma: |
Inglês |
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Conteúdo: |
Although some methods for determining lime requirement of pond soils are available and commonly used, there is still no consensus on whether it is more effective to apply liming materiais to the bottoms of empty ponds or to wait and apply them over the water surface after ponds are filled. There is also litle information on how deep lime reacts in pond sediment over time, and whether the depth of reaction is different when liming materiais are applied to the water or to the soil. Therefore, three techniques for treating fish ponds with agricultural limestone were evaluated in ponds with clayey soils at a commercial fish farm. Amounts of agricultural limestone equal to the lime requirement of bottom soils were applied to each of three ponds by: direct application over the pond water surface; spread uniformity over the bottom of the empty pond; spread uniformity over the bottom of the empty pond followed by tilling of the bottom. Effectiveness of agricultura! limestone applications did not differ among treatment methods. Agricultural limestone also reacted quickly to increase total alkalinity and total hardness of pond water to acceptable concentrations within 2 weeks after application. The reaction of lime to increase soil pH was essentially complete after one to two months, and lime had no effect below a soil depth of 8 cm. Tilling of pond bottoms to incorporate liming materiais is unnecessary, and tilling consumes time and is an expensive practice; filled ponds can be limed effectively. MenosAlthough some methods for determining lime requirement of pond soils are available and commonly used, there is still no consensus on whether it is more effective to apply liming materiais to the bottoms of empty ponds or to wait and apply them over the water surface after ponds are filled. There is also litle information on how deep lime reacts in pond sediment over time, and whether the depth of reaction is different when liming materiais are applied to the water or to the soil. Therefore, three techniques for treating fish ponds with agricultural limestone were evaluated in ponds with clayey soils at a commercial fish farm. Amounts of agricultural limestone equal to the lime requirement of bottom soils were applied to each of three ponds by: direct application over the pond water surface; spread uniformity over the bottom of the empty pond; spread uniformity over the bottom of the empty pond followed by tilling of the bottom. Effectiveness of agricultura! limestone applications did not differ among treatment methods. Agricultural limestone also reacted quickly to increase total alkalinity and total hardness of pond water to acceptable concentrations within 2 weeks after application. The reaction of lime to increase soil pH was essentially complete after one to two months, and lime had no effect below a soil depth of 8 cm. Tilling of pond bottoms to incorporate liming materiais is unnecessary, and tilling consumes time and is an expensive practice; filled ponds can be limed... Mostrar Tudo |
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Palavras-Chave: |
Aplicação; Aração; Calcário agrícola; Viveiro de peixes. |
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Thesagro: |
Acidez; Alcalinidade; Aqüicultura; Calagem; Método. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02253naa a2200265 a 4500
001 1015486
005 2017-07-13
008 2004 bl uuuu u00u1 u #d
100 1 $aQUEIROZ, J. F. de
245 $aLime application methods, water and bottom soil acidity in fresh water fish ponds.$h[electronic resource]
260 $c2004
520 $aAlthough some methods for determining lime requirement of pond soils are available and commonly used, there is still no consensus on whether it is more effective to apply liming materiais to the bottoms of empty ponds or to wait and apply them over the water surface after ponds are filled. There is also litle information on how deep lime reacts in pond sediment over time, and whether the depth of reaction is different when liming materiais are applied to the water or to the soil. Therefore, three techniques for treating fish ponds with agricultural limestone were evaluated in ponds with clayey soils at a commercial fish farm. Amounts of agricultural limestone equal to the lime requirement of bottom soils were applied to each of three ponds by: direct application over the pond water surface; spread uniformity over the bottom of the empty pond; spread uniformity over the bottom of the empty pond followed by tilling of the bottom. Effectiveness of agricultura! limestone applications did not differ among treatment methods. Agricultural limestone also reacted quickly to increase total alkalinity and total hardness of pond water to acceptable concentrations within 2 weeks after application. The reaction of lime to increase soil pH was essentially complete after one to two months, and lime had no effect below a soil depth of 8 cm. Tilling of pond bottoms to incorporate liming materiais is unnecessary, and tilling consumes time and is an expensive practice; filled ponds can be limed effectively.
650 $aAcidez
650 $aAlcalinidade
650 $aAqüicultura
650 $aCalagem
650 $aMétodo
653 $aAplicação
653 $aAração
653 $aCalcário agrícola
653 $aViveiro de peixes
700 1 $aNICOLELLA, G.
700 1 $aWOOD, C. W.
700 1 $aBOYD, C. E.
773 $tScientia Agricola, Piracicaba$gv. 61, n. 5, set./out. p.469-475, 2004.
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