Uman National University | today: 05/30/2026
| Author(s) |
Пономарьова М. С., , , Романова Т. А., , , |
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|---|---|---|---|
| Category | The Agronomy | ||
| year | 2026 | issue | Issue 108 part 1 |
| pages | 386-398 | index UDK | 631.8:631.559 | DOI | 10.32782/2415-8240-2026-108-1-386-398 (Link) |
| Abstract | The article investigates the synergistic effect of the combined application of mineral fertilizers and biological preparations as a tool for increasing the yield of agricultural crops under sustainable farming conditions. The study examines the theoretical foundations and practical mechanisms of the interaction between inorganic nutrients and living microbial systems, including biological nitrogen fixation by symbiotic rhizobia, associative Azospirillum and free-living Azotobacter species, phosphate solubilization by acid-producing bacteria, and the contribution of microbial inoculants containing Bacillus subtilis, Azotobacter chroococcum and Paenibacillus mucilaginosus to the physicochemical improvement of soil properties. The methodological basis combines critical review and meta-analysis of scientific publications, quantitative comparison of yield indicators and nutrient use efficiency across controlled and integrated fertilization schemes, structural-logical analysis, and economic assessment through cost-per-hectare and return-on-investment metrics across soil types. It is established that the combined application of biofertilizers and mineral nutrition increases crop yields by 67–82% for legumes and allows synthetic fertilizer rates to be reduced by 20–50% without productivity losses. The highest agronomic and economic effect is achieved through the application of dual-function bioproducts – those possessing both nitrogen-fixing and phosphate-solubilizing properties – in conjunction with precision agriculture tools such as GPS-guided equipment and soil sensor systems. The comparative analysis of three fertilization systems demonstrates that integrated management outperforms mineral-only and biological-only approaches across all evaluated dimensions: agronomic performance, soil health indicators, economic efficiency and environmental impact. Annual cost savings reach USD 100–300+ per hectare, soil organic matter increases by up to 39%, and the carbon footprint of production is reduced by 15–20%. It is concluded that integrated plant nutrition systems should be treated as a comprehensive agro-economic mechanism capable of delivering food security of a new type – effective, ecologically balanced and oriented towards long-term sustainability of Ukrainian agriculture. | ||
| Key words | fertilizer synergy, biological preparations, mineral nutrition, crop yield, nitrogen-fixing bacteria, phosphate-solubilizing microorganisms, sustainable agriculture, precision farming, integrated nutrient management, soil health | ||