Effect of organogenic materials and bacterial preparations on the biotechnological process of composting and effectiveness of organobacterial fertilizers

The effect of the physicochemical properties of organogenic materials and additives of bacterial preparations of the genus Pseudomonas, on the process of composting and properties of the organobacterial fertilizers obtained is investigated.     

Soil protective moisture- and resource-saving tillage methods when growing spring wheat in the forest steppe of the Ulyanovsk Region

The effectiveness of resource-saving methods of tilling soil planted to spring wheat compared with conventional plowing is shown on the basis of long-term investigations on chernozem soils of the forest steppe in the Middle Volga Region. In this case, productive moisture storage increases 8–10%, the intensity of soil structure formation and water stability of the soil structure improve 1.9–2.4%, a 0.12–0.15 t/ha yield gain is achieved, and direct production costs are saved.     

Assessment of resistance of soddy-calcareous typical soils of the Black Sea Coast of the Caucasus to chemical contamination

Based on laboratory modeling, a conclusion has been made that contamination of soddy-calcareous typical soil of the Black Sea Coast of the Caucasus by Cr, Cu, Ni, Pb, and oil results in its poorer biological properties. The total number of bacteria drops, the activity of catalase and dehydrogenase and celluloselytic activity become smaller, the amount of bacteria of the Azotobacter genus decreases, and the parameters of germination and initial growth of radish become poorer. With respect to the adverse effect on the biological properties of the investigates soil, heavy metals may be arranged into the following series: Cr > Cu ≥ Ni = Pb. Qualitative benchmarks of the regional maximum permissible contents of Cr, Cu, Ni, Pb, and oil in soddycalcareous typical soils of this region were determined on the basis of changes in ecological soil functions.     

Influence of Bioremediation on the Biological Activity of Leached Chernozem Contaminated with Oil and Lead

Eurasian Soil Science - The effect of contamination with oil, lead, and their combinations and the influence of bioremediation with the use of microorganisms on the biological activity of leached...