Behavior of minerals in agro soddy podzolic soils resulted from different rates of organic fertilizers

The experimental results showed the impact rendered by different rates of organic fertilizers in the kind of poultry excrements on crystallochemical parameters of minerals containing in the fine-dispersed fractions (less than 1, 1-5, 5-10 mkm). The considerable changes induced by increased rates of organic fertilizers take place in the ratio between the basic mineral phases and the crystallochemistry of minerals of the clay fraction as the most functional part of soil. One should indicate that the content of the clay fraction decreases, the layered silicates are destroyed and transformed as affected by higher rates of potassium and ammonium, fixed by mixed-layered formations with smectite pockets. The functionally inert minerals such as quartz, feldspar, plagioclase and mica of dioctahedral type are accumulated.