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Evaluation of Cation Exchange Capacity (CEC) in Tropical Soils Using Four Different Analytical Methods

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  • Fabio Aprile
  • Reinaldo Lorandi

Abstract

Four analytical methods for determination of cation exchange capacity (CEC) in tropical soils were tested, aiming to define what the most appropriate based on the requirements- analysis time, degree of reliability and cost of operation. A total of 444 soil samples from the Amazon rainforest and Atlantic rainforest were analyzed in eleven soils types. Organic matter, pH and ions Na+, K+, Ca2+, Mg2+ and H++Al3+ were also analyzed. The influence of the action of fire on the release of ions to the soil was also tested. The results indicated that there was a momentary increase in CEC in the soil after a fire. Tropical soils have a high humidity and acidity, contributing to an overall increase of CEC. Adverse climatic conditions in the tropics affect soil properties, so that practical methods and low cost have the advantage that they can be applied periodically to analyze the quality of the soil.

Suggested Citation

  • Fabio Aprile & Reinaldo Lorandi, 2012. "Evaluation of Cation Exchange Capacity (CEC) in Tropical Soils Using Four Different Analytical Methods," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 4(6), pages 278-278, April.
    • Handle: RePEc:ibn:jasjnl:v:4:y:2012:i:6:p:278
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    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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