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| Registros recuperados : 47 | |
| Registros recuperados : 47 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
07/02/2002 |
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Data da última atualização: |
10/09/2004 |
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Autoria: |
ERNANI, P. R.; BARBER, S. A. |
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Título: |
Corn growth and changes of soil and root parameters as affected by phosphate fertilizers and liming. |
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Ano de publicação: |
1991 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, V.26, n.9, p.1309-1314, set. 1991 |
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Idioma: |
Inglês |
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Conteúdo: |
Soil and root parameters that influence nutrient uptake were evaluated in this study of comparing the effectiveness of phosphate fertilizers in an acid soil. North Carolina rock phosphate (RP), partially acidulated Togo rock phosphate (PA), monocalcium phosphate (MCP), and diammonium phosphate (DAP) were applied to limed (pH 5,6) or unlimed (pH4,6) soil samples. Eighteen days later, transplanted corn (Zea mays L.) seedlings were grown in pots for 12 days. Soluble phosphates, DAP and MCP, were the most efficient fertilizers for increasing corn dry matter on limed pots; in absernce of limestone, the best yield was obained with DAP because it decreased soil solution A1. Phosphorus in the soil solution (Pli) was lower on limed than on unlimed samples, but resin-exchangeable P was not affected by liming. MCP gave the highest increase of Pil on unlimed samples whereas DAP did it in presence of liming. Root dry matter and root length were greater on limed than on unlimed pots for all sources of P, except for DAP, where the soil acidity had no detrimental effect on these parameters. |
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Thesagro: |
Absorção de Nutrientes; Fósforo; Ph; Solução do Solo. |
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Thesaurus NAL: |
nutrient uptake; phosphorus; soil solution. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/21255/1/pab01_set_91.pdf
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Marc: |
LEADER 01732naa a2200217 a 4500
001 1106106
005 2004-09-10
008 1991 bl uuuu u00u1 u #d
100 1 $aERNANI, P. R.
245 $aCorn growth and changes of soil and root parameters as affected by phosphate fertilizers and liming.
260 $c1991
520 $aSoil and root parameters that influence nutrient uptake were evaluated in this study of comparing the effectiveness of phosphate fertilizers in an acid soil. North Carolina rock phosphate (RP), partially acidulated Togo rock phosphate (PA), monocalcium phosphate (MCP), and diammonium phosphate (DAP) were applied to limed (pH 5,6) or unlimed (pH4,6) soil samples. Eighteen days later, transplanted corn (Zea mays L.) seedlings were grown in pots for 12 days. Soluble phosphates, DAP and MCP, were the most efficient fertilizers for increasing corn dry matter on limed pots; in absernce of limestone, the best yield was obained with DAP because it decreased soil solution A1. Phosphorus in the soil solution (Pli) was lower on limed than on unlimed samples, but resin-exchangeable P was not affected by liming. MCP gave the highest increase of Pil on unlimed samples whereas DAP did it in presence of liming. Root dry matter and root length were greater on limed than on unlimed pots for all sources of P, except for DAP, where the soil acidity had no detrimental effect on these parameters.
650 $anutrient uptake
650 $aphosphorus
650 $asoil solution
650 $aAbsorção de Nutrientes
650 $aFósforo
650 $aPh
650 $aSolução do Solo
700 1 $aBARBER, S. A.
773 $tPesquisa Agropecuária Brasileira, Brasília, V.26$gn.9, p.1309-1314, set. 1991
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Embrapa Unidades Centrais (AI-SEDE) |
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