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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Hortaliças; Embrapa Meio-Norte; Embrapa Pantanal; Embrapa Soja; Embrapa Solos; Embrapa Suínos e Aves; Embrapa Tabuleiros Costeiros; Embrapa Trigo. |
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Data corrente: |
03/03/1993 |
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Data da última atualização: |
25/09/2003 |
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Autoria: |
ANJOS, J. T. dos. |
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Título: |
The effect of lime on phosphorus adsorption, plant growth and leaching losses of calcium in some acid soils from Santa Catarina, Brazil. |
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Ano de publicação: |
1981 |
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Fonte/Imprenta: |
1981. |
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Páginas: |
195 f. |
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Idioma: |
Inglês |
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Notas: |
Thesis (Doctor of Philosophy) - Department of Soil Science, University of Reading, Reading. |
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Conteúdo: |
The present investigation was carried out in three experiments with soils from Santa Catarina, Brazil. a) Lime application and time of lime incubation had little effect on the adsorption of added phosphorus. Only small changes in solution P, isotopically exchangeable P and non-exchangeable P were found. In two soils with high contents of exchangeable P slightly decreased and non-exchangeable P slightly increased in recently limed samples (1 month incubation). These small changes were probably caused by phosphorus adsorbing on freshly precipitated aluminium hydrous oxides. In one soil with less exchangeable aluminium, P in solution slightly increased with lime applications. Time of incubation (10 and 23 months) slightly increased solution and exchangeable P and slightly decreased non-exchangeable P and slightly decreased non-exchangeable P at all lime levels. The appreared to be due to crystallization of aluminium hydrous oxides with time, reducing the number of sites for P adsorption. b) In a pot experiment, lime and phosphorus application have markedly increased barley shoot and root dry matter and nutrient uptake. Althrough liming has slightly reduced phosphorus availability measured by solution P, isotopically exchangeable P and resin extractable P, it has increased phosphorus uptake possible by reducing aluminium toxicity and promoting better root growth. The soil aluminium without being damaged. c) in soil columns, the losses of calcium by leaching have increased with lime applications. Nitrate and ........... MenosThe present investigation was carried out in three experiments with soils from Santa Catarina, Brazil. a) Lime application and time of lime incubation had little effect on the adsorption of added phosphorus. Only small changes in solution P, isotopically exchangeable P and non-exchangeable P were found. In two soils with high contents of exchangeable P slightly decreased and non-exchangeable P slightly increased in recently limed samples (1 month incubation). These small changes were probably caused by phosphorus adsorbing on freshly precipitated aluminium hydrous oxides. In one soil with less exchangeable aluminium, P in solution slightly increased with lime applications. Time of incubation (10 and 23 months) slightly increased solution and exchangeable P and slightly decreased non-exchangeable P and slightly decreased non-exchangeable P at all lime levels. The appreared to be due to crystallization of aluminium hydrous oxides with time, reducing the number of sites for P adsorption. b) In a pot experiment, lime and phosphorus application have markedly increased barley shoot and root dry matter and nutrient uptake. Althrough liming has slightly reduced phosphorus availability measured by solution P, isotopically exchangeable P and resin extractable P, it has increased phosphorus uptake possible by reducing aluminium toxicity and promoting better root growth. The soil aluminium without being damaged. c) in soil columns, the losses of calcium by leaching have increased with l... Mostrar Tudo |
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Palavras-Chave: |
Al; Aluminium; Brasil; Ca; Cal; Fertilização; Fertilization; Growth; Lime; Nutrient; P; Plant; Plants; Santa Catarina; Solos Acidos; Solos: Fosforo. |
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Thesagro: |
Acidez; Adsorção; Adubação; Alumínio; Calagem; Cálcio; Crescimento; Fertilizante Fosfatado; Fósforo; Lixiviação; Ph; Planta; Solo; Solo Ácido. |
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Thesaurus Nal: |
acid soils; adsorption; Brazil; calcium; leaching; liming; phosphorus; plant growth; soil. |
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Categoria do assunto: |
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X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 03004nam a2200601 a 4500
001 1465342
005 2003-09-25
008 1981 bl uuuu m 00u1 u #d
100 1 $aANJOS, J. T. dos
245 $aThe effect of lime on phosphorus adsorption, plant growth and leaching losses of calcium in some acid soils from Santa Catarina, Brazil.
260 $a1981.$c1981
300 $a195 f.
500 $aThesis (Doctor of Philosophy) - Department of Soil Science, University of Reading, Reading.
520 $aThe present investigation was carried out in three experiments with soils from Santa Catarina, Brazil. a) Lime application and time of lime incubation had little effect on the adsorption of added phosphorus. Only small changes in solution P, isotopically exchangeable P and non-exchangeable P were found. In two soils with high contents of exchangeable P slightly decreased and non-exchangeable P slightly increased in recently limed samples (1 month incubation). These small changes were probably caused by phosphorus adsorbing on freshly precipitated aluminium hydrous oxides. In one soil with less exchangeable aluminium, P in solution slightly increased with lime applications. Time of incubation (10 and 23 months) slightly increased solution and exchangeable P and slightly decreased non-exchangeable P and slightly decreased non-exchangeable P at all lime levels. The appreared to be due to crystallization of aluminium hydrous oxides with time, reducing the number of sites for P adsorption. b) In a pot experiment, lime and phosphorus application have markedly increased barley shoot and root dry matter and nutrient uptake. Althrough liming has slightly reduced phosphorus availability measured by solution P, isotopically exchangeable P and resin extractable P, it has increased phosphorus uptake possible by reducing aluminium toxicity and promoting better root growth. The soil aluminium without being damaged. c) in soil columns, the losses of calcium by leaching have increased with lime applications. Nitrate and ...........
650 $aacid soils
650 $aadsorption
650 $aBrazil
650 $acalcium
650 $aleaching
650 $aliming
650 $aphosphorus
650 $aplant growth
650 $asoil
650 $aAcidez
650 $aAdsorção
650 $aAdubação
650 $aAlumínio
650 $aCalagem
650 $aCálcio
650 $aCrescimento
650 $aFertilizante Fosfatado
650 $aFósforo
650 $aLixiviação
650 $aPh
650 $aPlanta
650 $aSolo
650 $aSolo Ácido
653 $aAl
653 $aAluminium
653 $aBrasil
653 $aCa
653 $aCal
653 $aFertilização
653 $aFertilization
653 $aGrowth
653 $aLime
653 $aNutrient
653 $aP
653 $aPlant
653 $aPlants
653 $aSanta Catarina
653 $aSolos Acidos
653 $aSolos: Fosforo
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Embrapa Soja (CNPSO) |
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