INTERACTION OF MINERAL AND BACTERIAL FERTILIZERS IN THE FORMATION OF COMMON BEAN (PHASEOLUS VULGARIS L.) YIELD

This article analyzes the agrobiological efficiency of mineral and bacterial fertilizers in the formation of common bean (Phaseolus vulgaris L.) productivity. Particular attention is given to the effects of nitrogen and phosphorus fertilization on plant growth, yield components and grain productivity, as well as the role of Rhizobium and Bacillus bacteria in biological nitrogen fixation and nutrient acquisition. Recent studies demonstrate that the effectiveness of bacterial inoculation depends strongly on mineral nutrient availability, bacterial strain, bean genotype and soil conditions. A two-year field experiment published in Legume Research in 2025 showed that the application of 40 kg N ha⁻¹ + 60 kg P₂O₅ ha⁻¹ combined with Bacillus atrophaeus + Rhizobium gallicum resulted in grain yields of 3482 kg ha⁻¹ in 2020 and 4497 kg ha⁻¹ in 2022 [1, p. 701]. The interaction between inorganic and microbial fertilizers was statistically significant in both years [1, p. 701]. Other recent studies have demonstrated that combining Rhizobium inoculation with phosphorus fertilization can improve nodulation, yield components and grain productivity. The analysis supports an integrated nutrient-management approach in which mineral and bacterial fertilizers are combined according to soil, genotype and agroecological conditions.