Influence of electrolites, ionic species and exchangeable sodium on soil dispersion.

Authors

  • Lázara María Otero-Gómez MINAG, Instituto de Suelos
  • Vicente Armando Gálvez-Varcalcer MINAG, Instituto de Suelos
  • Norys Obdulia Navarro-Gómez MINAG, Instituto de Suelos
  • Luis Beltrán Rivero-Ramos MINAG, Instituto de Suelos
  • Juan Miguel Pérez-Jiménez MINAG, Instituto de Suelos
  • Tania La Guardia-Madrazo MINAG, Instituto de Suelos

DOI:

https://doi.org/10.15517/am.v23i1.6453

Keywords:

Salinity, electric conductivity, ionic strength.

Abstract

The objetive of this work was to determine the dispersing effect of salinity in a Gleysol petrogleyic soil of Artemisa, Pinardel Río, Cuba cropped with rice. The dispersing effect was determined from multiple lineal regresions obtained from the dispersion coefficient of the soils with the exchangeable sodiun percentage (PSI), electric conductivity (EC) andionic strengh that provide the total and free ions duringthe years 1997 to 2001, to discern the contribution of thesalinity indicators % Na+ (PSI), total ionic strength (It),free ionic strength (Il), electrical conductivity, and othersun-considered factors to the dispersion of the soils. High average dispersion of these soils masked the effect of electrolite accumulation, counteracting it, with exchangeable sodium showing dispersing effect in electric conductivityranges of 2,01 - 4 dS.m-1 and aNa+.(aCa2+)-0,5 total 5,01 - 7(mmol.L-1)0,5.

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Author Biographies

Lázara María Otero-Gómez, MINAG, Instituto de Suelos

Instituto de Suelos del MINAG. La Habana, Cuba.

Vicente Armando Gálvez-Varcalcer, MINAG, Instituto de Suelos

Instituto de Suelos del MINAG. La Habana, Cuba.

Norys Obdulia Navarro-Gómez, MINAG, Instituto de Suelos

Instituto de Suelos del MINAG. La Habana, Cuba.

Luis Beltrán Rivero-Ramos, MINAG, Instituto de Suelos

Instituto de Suelos del MINAG. La Habana, Cuba.

Juan Miguel Pérez-Jiménez, MINAG, Instituto de Suelos

Instituto de Suelos del MINAG. La Habana, Cuba.

Tania La Guardia-Madrazo, MINAG, Instituto de Suelos

Instituto de Suelos del MINAG. La Habana, Cuba.

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How to Cite

Otero-Gómez, L. M., Gálvez-Varcalcer, V. A., Navarro-Gómez, N. O., Rivero-Ramos, L. B., Pérez-Jiménez, J. M., & La Guardia-Madrazo, T. (2012). Influence of electrolites, ionic species and exchangeable sodium on soil dispersion. Agronomía Mesoamericana, 23(1), 189–200. https://doi.org/10.15517/am.v23i1.6453

Issue

2012: Agronomía Mesoamericana: Vol. 23, Issue 1 (January-June)

Section

Short Communication

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