The main purpose of our research was to study the effect of various growing systems, treatment of plant residues with nitrogen fertilizers and bacterial destructors of stubble, as well as the use in combination bacterial preparations and microfertilizers on the parameters of plant height formation and the yield of flax oil in the Dry Steppe of Ukraine. In the process of carrying out our scientific work and writing the article, we used field, laboratory, statistical and computationally-comparative methods of research. We have established that the yield level and biometric parameters of oil flax plants have high variability under the influence of the studied factors. In the experiments it was provided the highest values of both plant heights and the yield of flaxseed oil where the combination of nitrogen fertilizers and stubble destructors was used, as well as tank mixtures with microfertilizers and bacterial preparations with using the canning growing system.