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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
21/09/2012 |
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Data da última atualização: |
21/09/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
-- - -- |
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Autoria: |
NAVA, G.; ERNANI, P. R.; SÁ, A. A.; PEREIRA, A. J. |
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Afiliação: |
Epagri |
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Título: |
Soil Composition and Nutritional Status of Apple as Affected by LongTerm Application of Gypsum. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 36, n. 1, p. 215-222, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
A gypsum does not affect the soil negative charges and maintains sulfate in
the soil solution, making it one of the cheapest products to increase Ca activity
in soil solution, especially in the deeper soil layers. Higher Ca levels in the soil
solution can increase the uptake of this nutrient by apple trees, reducing the
risk of physiological disorders caused by Ca deficiency. this study assessed
the effect of long-term gypsum application on some soil properties and on the
chemical composition of leaves and fruits of an apple cultivar susceptible to
fruit disorders associated with low Ca. the experiment was conducted in São
Joaquim, in the South of brazil, from 2001 to 2009. gypsum rates of 0, 1.0, 2.0 and
3.0 t ha-1 were annually broadcast over the soil surface, without incorporation, in
an apple orchard with cultivar ´Catarina´, planted in 1997. gypsum application
over eight consecutive years had no effect on soil exchangeable K and al to a
depth of 80 cm, but increased exchangeable Ca in the sampled layers (0?10, 10?20,
40?60 and 60?80 cm), while exchangeable mg decreased only in the surface layer
(0?20 cm). gypsum did not affect the concentration of any nutrient in the fruits,
including Ca. the same was verified in the leaves, except for mg which decreased
with increased gypsum rate. despite increasing the availability of Ca in the soil
profile to a depth of 80 cm, gypsum was not effective to increase the Ca content
in leaves and fruits of an apple cultivar susceptible to Ca deficiency grown in
an appropriately limed soil. MenosA gypsum does not affect the soil negative charges and maintains sulfate in
the soil solution, making it one of the cheapest products to increase Ca activity
in soil solution, especially in the deeper soil layers. Higher Ca levels in the soil
solution can increase the uptake of this nutrient by apple trees, reducing the
risk of physiological disorders caused by Ca deficiency. this study assessed
the effect of long-term gypsum application on some soil properties and on the
chemical composition of leaves and fruits of an apple cultivar susceptible to
fruit disorders associated with low Ca. the experiment was conducted in São
Joaquim, in the South of brazil, from 2001 to 2009. gypsum rates of 0, 1.0, 2.0 and
3.0 t ha-1 were annually broadcast over the soil surface, without incorporation, in
an apple orchard with cultivar ´Catarina´, planted in 1997. gypsum application
over eight consecutive years had no effect on soil exchangeable K and al to a
depth of 80 cm, but increased exchangeable Ca in the sampled layers (0?10, 10?20,
40?60 and 60?80 cm), while exchangeable mg decreased only in the surface layer
(0?20 cm). gypsum did not affect the concentration of any nutrient in the fruits,
including Ca. the same was verified in the leaves, except for mg which decreased
with increased gypsum rate. despite increasing the availability of Ca in the soil
profile to a depth of 80 cm, gypsum was not effective to increase the Ca content
in leaves and fruits of an ap... Mostrar Tudo |
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Palavras-Chave: |
Calcium; Cations; Downward movement; Nutritional status. |
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Categoria do assunto: |
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Marc: |
LEADER 02184naa a2200205 a 4500
001 1087025
005 2012-09-21
008 2012 bl uuuu u00u1 u #d
100 1 $aNAVA, G.
245 $aSoil Composition and Nutritional Status of Apple as Affected by LongTerm Application of Gypsum.
260 $c2012
520 $aA gypsum does not affect the soil negative charges and maintains sulfate in the soil solution, making it one of the cheapest products to increase Ca activity in soil solution, especially in the deeper soil layers. Higher Ca levels in the soil solution can increase the uptake of this nutrient by apple trees, reducing the risk of physiological disorders caused by Ca deficiency. this study assessed the effect of long-term gypsum application on some soil properties and on the chemical composition of leaves and fruits of an apple cultivar susceptible to fruit disorders associated with low Ca. the experiment was conducted in São Joaquim, in the South of brazil, from 2001 to 2009. gypsum rates of 0, 1.0, 2.0 and 3.0 t ha-1 were annually broadcast over the soil surface, without incorporation, in an apple orchard with cultivar ´Catarina´, planted in 1997. gypsum application over eight consecutive years had no effect on soil exchangeable K and al to a depth of 80 cm, but increased exchangeable Ca in the sampled layers (0?10, 10?20, 40?60 and 60?80 cm), while exchangeable mg decreased only in the surface layer (0?20 cm). gypsum did not affect the concentration of any nutrient in the fruits, including Ca. the same was verified in the leaves, except for mg which decreased with increased gypsum rate. despite increasing the availability of Ca in the soil profile to a depth of 80 cm, gypsum was not effective to increase the Ca content in leaves and fruits of an apple cultivar susceptible to Ca deficiency grown in an appropriately limed soil.
653 $aCalcium
653 $aCations
653 $aDownward movement
653 $aNutritional status
700 1 $aERNANI, P. R.
700 1 $aSÁ, A. A.
700 1 $aPEREIRA, A. J.
773 $tRevista Brasileira de Ciência do Solo, Viçosa, MG$gv. 36, n. 1, p. 215-222, 2012.
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