Pedogenic Studies On Organic Matter Of Some Egyptian Soils

To trace the distribution patterns of the major groups of humic substances in representative profiles of alluvium, lacustrine, calcareous, Sandy, and alkali soils of Egypt. Another puropose of this study is to check the usefulness of extractable carbon and of Hc/Fc as creteria for differentiating groups of egyptian soils. profile distribution of iron-,alummum-, zinc-, manganese-, and copper-fulvic and humic acids complexes are also examined.