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  • ICAR and TNAU E-Course Summarized

    Summarized Notes
  • CEC values for organic soils lie in the range of

    Question: CEC values for organic soils lie in the range of

    Options:

    3 – 5 meq/100 g
    10 – 20 meq/100 g
    20 – 50 meq/100 g
    50 – 100 meq/100 g

    ✅Explanation:
    -Organic soils (or histosols) are characterized by their high organic matter content. Organic matter has a very high cation exchange capacity (CEC) due to the presence of numerous functional groups (like carboxyl and phenolic groups) that can hold and exchange cations.
    -The CEC of organic soils typically ranges from 50 to 100 meq/100g or even higher, depending on the type and degree of decomposition of the organic matter.
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