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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
24/08/1995 |
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Data da última atualização: |
24/08/1995 |
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Autoria: |
ANDERSON, C. A.; ALBRIGO, L. G. |
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Afiliação: |
University of Florida, Institute of Food and Agricultural Sciences, Agricultural Research and Education Center. |
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Título: |
Seasonal changes in the relationships between macronutrientes in orange (C. Sinensis OSB) Leaves and soil analytical data in Florida. |
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Ano de publicação: |
1977 |
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Fonte/Imprenta: |
Reprinted from Proc. Int. Soc. Citriculture, v.1, p.20-25, 1977. |
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Idioma: |
Inglês |
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Conteúdo: |
Leaf (spring flush) and soil sample were collected periodically duringthe spring and summer for 4 years (1973-1976) from commercial orange groves planted on deep sandy soils (Typic Quartizipsaments) in Florida. The chronological leaf contents of Ca increased while K decreased after reaching a maximum in 3-month-old leaves. Leaf N and Mg contents increased significantly to a plateau in 4-month-old leaves and leaf P decreased, reching a constant value at 4 to 6 months of age. Subsurface (15-91 cm) soil pH was about 1 unit lower than in the surface layer (0-15 cm ), while extractable Ca, Mg, K, and P were approximately 16, 25, 49, and 48% lower, respectively, than in the surface layer. |
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Palavras-Chave: |
Ca; K; Leaf analysis; Mg; N; P. |
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Thesagro: |
Ph. |
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Thesaurus Nal: |
soil analysis. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01316naa a2200229 a 4500
001 1646847
005 1995-08-24
008 1977 bl --- 0-- u #d
100 1 $aANDERSON, C. A.
245 $aSeasonal changes in the relationships between macronutrientes in orange (C. Sinensis OSB) Leaves and soil analytical data in Florida.
260 $c1977
520 $aLeaf (spring flush) and soil sample were collected periodically duringthe spring and summer for 4 years (1973-1976) from commercial orange groves planted on deep sandy soils (Typic Quartizipsaments) in Florida. The chronological leaf contents of Ca increased while K decreased after reaching a maximum in 3-month-old leaves. Leaf N and Mg contents increased significantly to a plateau in 4-month-old leaves and leaf P decreased, reching a constant value at 4 to 6 months of age. Subsurface (15-91 cm) soil pH was about 1 unit lower than in the surface layer (0-15 cm ), while extractable Ca, Mg, K, and P were approximately 16, 25, 49, and 48% lower, respectively, than in the surface layer.
650 $asoil analysis
650 $aPh
653 $aCa
653 $aK
653 $aLeaf analysis
653 $aMg
653 $aN
653 $aP
700 1 $aALBRIGO, L. G.
773 $tReprinted from Proc. Int. Soc. Citriculture$gv.1, p.20-25, 1977.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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