APPROACHES TO OPTIMIZING AZOSPIRILLUM INTRODUCTION

By using multifactor variance analysis of data obtained in a series of similar experiments, it was established that the factors to be taken into account in introducing azospirilla include the stage of microbial succession in the soil, the inoculation dose, and the strain variabil ity of azospirilla. Seed inoculation with azospirilla can enhance both positive and adverse effects imposed on plants by microbial successio n in the soil. Population dynamics and inoculation efficiency were sho wn to strongly depend on the state of the soil microbial community at the moment of Azospirillum introduction.