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Registro Completo |
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
12/11/1998 |
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Data da última atualização: |
12/11/1998 |
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Autoria: |
JOSEPH, J.; WAHID, P. A. |
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Título: |
Dynamics of soil nutrient reserves in coconut rhizosphere as influenced by long term inorganic fertilization |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Journal of Plantation Crops, v.25, n.1, p.44-51, 1997. |
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Idioma: |
Português |
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Conteúdo: |
Changes that had taken place in respect of soil acidity and nutrient reserves in the rhizosphere of coconut palm to a depth of 100 cm following 22 years of regular application of ammonium sulphate, supethosphate and muriate of potash were evaluated using an on-going NPK factorial experiment with coconut in alfisol soil. Application of ammonium suphate increased the exchange acidity and exchangeable aluminium and reduced the Ca reserves from the coconut root zone were also observed in plost that received ammonium sulphate. Application of superphosphate along with ammonium sulphate, however, tended to reduce the il-effects of the latter, especially in the surface 25 cm soil layer. Substantialincrease in soil P reserve and fairly good improvement of Ca and S resrves were observed as a result of regular application of superphosphate.Combined application of superphosphate and ammonium suphate resultedin the largest accumulation of S in the soil. Among the soil P fractions, the increase in AI-P was more pronounced in the superphosphate-treated plots. Application of muriate of potash increased the K reserve of the soil. The results were discussed from the point of view of soil degradation and wasteful accumulation of nutrients due to annual fertilization disregardin the impact of previous years applications. |
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Palavras-Chave: |
Adubo inorganico; Coconut; Fertilizante inorganica; Fertilization; Inorganic; Soil nutrient. |
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Thesagro: |
Coco; Cocos Nucifera. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01970naa a2200229 a 4500
001 1354673
005 1998-11-12
008 1997 bl uuuu u00u1 u #d
100 1 $aJOSEPH, J.
245 $aDynamics of soil nutrient reserves in coconut rhizosphere as influenced by long term inorganic fertilization
260 $c1997
520 $aChanges that had taken place in respect of soil acidity and nutrient reserves in the rhizosphere of coconut palm to a depth of 100 cm following 22 years of regular application of ammonium sulphate, supethosphate and muriate of potash were evaluated using an on-going NPK factorial experiment with coconut in alfisol soil. Application of ammonium suphate increased the exchange acidity and exchangeable aluminium and reduced the Ca reserves from the coconut root zone were also observed in plost that received ammonium sulphate. Application of superphosphate along with ammonium sulphate, however, tended to reduce the il-effects of the latter, especially in the surface 25 cm soil layer. Substantialincrease in soil P reserve and fairly good improvement of Ca and S resrves were observed as a result of regular application of superphosphate.Combined application of superphosphate and ammonium suphate resultedin the largest accumulation of S in the soil. Among the soil P fractions, the increase in AI-P was more pronounced in the superphosphate-treated plots. Application of muriate of potash increased the K reserve of the soil. The results were discussed from the point of view of soil degradation and wasteful accumulation of nutrients due to annual fertilization disregardin the impact of previous years applications.
650 $aCoco
650 $aCocos Nucifera
653 $aAdubo inorganico
653 $aCoconut
653 $aFertilizante inorganica
653 $aFertilization
653 $aInorganic
653 $aSoil nutrient
700 1 $aWAHID, P. A.
773 $tJournal of Plantation Crops$gv.25, n.1, p.44-51, 1997.
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Registro original: |
Embrapa Tabuleiros Costeiros (CPATC) |
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