Cations held on the clay and organic matter particles in soils can be replaced ... clays Hoytville Organic soils Carlisle muck 50-100 ----- Cations on the soil's exchange sites serve as a source of ...

In a suspension of soil in water, some of the surface molecules are ionised, and an electrical double layer is formed containing anions of soil acids inside, and outside the cations H′, Mg″, C ...