EFFECT OF DEGREE OF EROSION ON THE ELEMENTS OF FERTILITY OF SOD-CALCAREOUS SOILS
The soil cover of the Irkutsk region is diverse, but valuable areas in terms of agricultural use of are not much. Soddy-calcareous soils according to its agricultural industrial indicators are among the best, but these soils are most susceptible to wind and water erosion. The results of investigation of the influence degree of erosion of sod-calcareous soil on grain size, the most important agro-chemical properties: humus content, actual acidity, presents reserves of humus and total nitrogen in eroded and not eroded analogues have been presented; the proposed measures have been aimed at improving the fertility of the studied soils.