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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
06/10/2021 |
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Data da última atualização: |
06/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVEIRA, K. R. da; RIBEIRO, M. R.; OLIVEIRA, L. B. de; HECK, R. J.; SILVEIRA, R. R. da. |
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Afiliação: |
KARIEN RODRIGUES DA SILVEIRA, UFRPE; MATEUS ROSAS RIBEIRO, UFRPE; LUIZ BEZERRA DE OLIVEIRA, CNPS; RICHARD JOHN HECK, UNIVERSITY OF GUELPH; RACHEL RODRIGUES DA SILVEIRA, UFRPE. |
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Título: |
Gypsum-saturated water to reclaim alluvial saline sodic and sodic soils. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Scientia Agricola, v. 65, n. 1, p. 69-76, jan./fev. 2008. |
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DOI: |
https://doi.org/10.1590/S0103-90162008000100010 |
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Idioma: |
Inglês |
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Conteúdo: |
Inadequate management of soil and irrigation water contribute to soil degradation, particularly in the alluvial areas of Northeast Brazil, where salinity and sodicity are already common features. This study evaluates the effects of the addition of gypsum in the irrigation water on physical and chemical properties of soils with different levels of salinity and sodicity. Samples were collected at the Custódia irrigation area of Brazil, predominantly covered by alluvial soils. Leaching tests using simulated irrigation water classified as C3S1, and gypsum-saturated irrigation water were carried out in soil columns of 20 and 50 cm depth. Soil leaching with gypsum saturated water (T2) resulted in an increase in the amounts of exchangeable calcium and potassium, and in a decrease of soil pH, in relation to the original soil (T0), with significant statistical differences to the treatment using only water (T1). There was a reduction in the electrical conductivity, exchangeable sodium and exchangeable sodium percentage in both treatments (T1 and T2), with treatment T2 being more effective in the leaching of soil sodium. No changes of electrical conductivity, calcium and pH in depth were observed, but the 20 - 50 cm layer presented higher amounts of magnesium, sodium and exchangeable sodium percentage. Gypsum saturated water improved the hydraulic conductivity in both layers. The use of gypsum in the irrigation water improved soil physical and chemical properties and should be considered as an alternative in the process of reclamation of saline-sodic and sodic soils in Northeast Brazil. MenosInadequate management of soil and irrigation water contribute to soil degradation, particularly in the alluvial areas of Northeast Brazil, where salinity and sodicity are already common features. This study evaluates the effects of the addition of gypsum in the irrigation water on physical and chemical properties of soils with different levels of salinity and sodicity. Samples were collected at the Custódia irrigation area of Brazil, predominantly covered by alluvial soils. Leaching tests using simulated irrigation water classified as C3S1, and gypsum-saturated irrigation water were carried out in soil columns of 20 and 50 cm depth. Soil leaching with gypsum saturated water (T2) resulted in an increase in the amounts of exchangeable calcium and potassium, and in a decrease of soil pH, in relation to the original soil (T0), with significant statistical differences to the treatment using only water (T1). There was a reduction in the electrical conductivity, exchangeable sodium and exchangeable sodium percentage in both treatments (T1 and T2), with treatment T2 being more effective in the leaching of soil sodium. No changes of electrical conductivity, calcium and pH in depth were observed, but the 20 - 50 cm layer presented higher amounts of magnesium, sodium and exchangeable sodium percentage. Gypsum saturated water improved the hydraulic conductivity in both layers. The use of gypsum in the irrigation water improved soil physical and chemical properties and should be consider... Mostrar Tudo |
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Thesagro: |
Irrigação; Manejo do Solo. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/226768/1/Gypsum-saturated-water-to-reclaim-alluvial-saline-sodic-and-sodic-soils-2008.pdf
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Marc: |
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001 2135118
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024 7 $ahttps://doi.org/10.1590/S0103-90162008000100010$2DOI
100 1 $aSILVEIRA, K. R. da
245 $aGypsum-saturated water to reclaim alluvial saline sodic and sodic soils.$h[electronic resource]
260 $c2008
520 $aInadequate management of soil and irrigation water contribute to soil degradation, particularly in the alluvial areas of Northeast Brazil, where salinity and sodicity are already common features. This study evaluates the effects of the addition of gypsum in the irrigation water on physical and chemical properties of soils with different levels of salinity and sodicity. Samples were collected at the Custódia irrigation area of Brazil, predominantly covered by alluvial soils. Leaching tests using simulated irrigation water classified as C3S1, and gypsum-saturated irrigation water were carried out in soil columns of 20 and 50 cm depth. Soil leaching with gypsum saturated water (T2) resulted in an increase in the amounts of exchangeable calcium and potassium, and in a decrease of soil pH, in relation to the original soil (T0), with significant statistical differences to the treatment using only water (T1). There was a reduction in the electrical conductivity, exchangeable sodium and exchangeable sodium percentage in both treatments (T1 and T2), with treatment T2 being more effective in the leaching of soil sodium. No changes of electrical conductivity, calcium and pH in depth were observed, but the 20 - 50 cm layer presented higher amounts of magnesium, sodium and exchangeable sodium percentage. Gypsum saturated water improved the hydraulic conductivity in both layers. The use of gypsum in the irrigation water improved soil physical and chemical properties and should be considered as an alternative in the process of reclamation of saline-sodic and sodic soils in Northeast Brazil.
650 $aIrrigação
650 $aManejo do Solo
700 1 $aRIBEIRO, M. R.
700 1 $aOLIVEIRA, L. B. de
700 1 $aHECK, R. J.
700 1 $aSILVEIRA, R. R. da
773 $tScientia Agricola$gv. 65, n. 1, p. 69-76, jan./fev. 2008.
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Embrapa Solos (CNPS) |
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