Proceedings Volume 2010 (format .pdf) - SimpBTH

Fig. 2 - Density of tests making in Mednikarovo and Staroselets dumpsAnother problem of technological nature is that it can not be obtained thereclaimed land’s micro-relief stability. In conducting field experiments in the areaof Mednikarovo and Staroselets dump it was obtained a lap in the field and a greatleveling of soil surface. In order the effect of alignment to be not brief, the bulkclay materials must be with humidity below 60% of the marginal soil moisture andthe layers piling to be accompanied by a gradual rolling of the freshly coveredareas, rather than simultaneously.A third problem is that the standard treatments of soil substrate can notachieve good mixing and conversion of arable horizon due to the thickness of thelayer from meliorated components. Recommended by some researchers area trenchis not suitable for the recultivated land because there is a top layer of clay remainswithout organic matter and it is unsuitable nutrition environment for seeds sown.These conclusions were confirmed by the test with the inclusion of gypsum fromSCI in the soil substrate held on Staroselets dump. The results showed that duringthe first year is the necessary conducting two major processes - plowing to a depthof 23-25 cm and a loosening of 45-50 cm, which takes place after the subsidence ofthe plowed layer.The water deficit in soil influences the quality of sowing areas preparationfor winter cereals. As a result of deteriorating physical condition of the soil it cannot be achieved the desired depth of processing and structure of soil aggregates.The use of siderate crops contributes to further plowing the crop residues andcreates conditions for their rapid decomposition.Poor physical conditions are identified as the most limiting factor for asuccessful crops growing on mining dumps. The problems of their optimization canbe solved by using other methods of technical reclamation. Compact nonhumus95