2006. THE QUANTITY OF AMMONIUM CREATING BACTERIUM OF LIGHT BROWN AND GRAY SEMI DESERT SOILS OF APPLE ORCHARDS AFTER THE INTRODUCTION OF ENTOMO PATHOGEN BACTERIUM CREATING CRYSTALS. Proceedings of the YSU B: Chemical and Biological Sciences. 40, 3 (211) (Oct. 2006), 71–77. DOI:https://doi.org/10.46991/PYSUB.2006.40.3.071.