EN
Field experiment was carried in years 1977-1984 on the light soil of pH in H20 - 4, 3; and in 1m KCl - 3, 6. The soil was limed every four years with single and quadruple doses of CaO and CaCO3. It was stated that soil liming,especally with quadruple doses of CaO and single and quadruple CaCO3 caused the increase of the exchangable calcium. However the applied experiment has influenced the exchangable Mg content.