Irrigation water quality using cation ratio and sodium adsorption ratio in the baixo Açu Region / Qualidade da água de irrigação usando a relação de cátions e razão de adsorção de sódio na região do Baixo Açu

Autores

  • Celsemy Eleutério Maia
  • Ana Quézia Carvalho Braga
  • José Mariano da Silva Neto
  • Elton Dannilo Carvalho Braga

DOI:

https://doi.org/10.34188/bjaerv3n4-015

Palavras-chave:

soil dispersion, physical soil properties, modeling

Resumo

The irrigation water quality is assessed primarily by its risk of salinity and sodicity to the soil. The aim of this work was to compare the method of relationship between cations and Sodium Adsorption Ratio (SAR) in the evaluation of the risk of soil dispersion of water for irrigation in the Baixo Açu region. The data used in this work came from 50 samples of water collected in this region, that is located in western of the State of Rio Grande do Norte, being 20 samples of well, 18 of river and 12 of dam. In the water samples the following physical and chemical characteristics were determined: pH, electrical conductivity (EC), calcium (Ca2+), magnesium (Mg2+), sodium (Na+), potassium (K+), chloride (Cl-), bicarbonate (HCO3-) and carbonate (CO32-). The values of sodium adsorption ratio (SAR), monovalent cation adsorption ratio (MCAR) and cations ratio of soil structural stability (CROSSo) were calculated. The risk of soil dispersion was CROSSo> MCAR> SAR for well, river and dam water.

Referências

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Publicado

2020-10-05

Como Citar

Maia, C. E., Braga, A. Q. C., Silva Neto, J. M. da, & Braga, E. D. C. (2020). Irrigation water quality using cation ratio and sodium adsorption ratio in the baixo Açu Region / Qualidade da água de irrigação usando a relação de cátions e razão de adsorção de sódio na região do Baixo Açu. Brazilian Journal of Animal and Environmental Research, 3(4), 2928–2934. https://doi.org/10.34188/bjaerv3n4-015

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