Kationvahetusvaegud
Kationvahetusvaegud, also known as cation exchange capacity (CEC), is a fundamental property of soil that describes its ability to hold and exchange positively charged ions, or cations. These cations include essential plant nutrients such as calcium (Ca2+), magnesium (Mg2+), potassium (K+), and ammonium (NH4+). The CEC is typically expressed in centimoles of charge per kilogram of soil (cmolc/kg) or milliequivalents per 100 grams of soil (meq/100g).
Soils with higher CEC values have a greater capacity to retain these nutrients, making them less susceptible
Factors influencing CEC include soil texture, with finer-textured soils (clays) generally having higher CEC than coarser-textured