SIVAK N. Ways to increase the productivity of common beans through mineral fertilizers and biological preparations in the conditions of the Western Forest-Steppe

The dissertation is devoted to the theoretical justification and practical solution of the scientific task, which consisted in the study of the elements of cultivation technology, namely, new promising varieties of common beans, methods of sowing, application of fertilizers and inoculation in the conditions of the Western Forest Steppe, which will ensure high yield and quality of grain. The most intensive course of the formation of the leaf surface area was noted in bean plants of the ordinary Mavka variety in the seeding phase with pre-sowing treatment with Rhizobophyte - 29.56 thousand m²/ha; a less intensive course of the formation of the leaf surface area was noted in bean plants of the common Eureka variety in the phase of seed filling with pre-sowing treatment with Rhizobophyte - 28.45 thousand m2/ha, little intensive in the Lastivka variety - 26.47 thousand m²/ha. The main indicator of productivity is the number of beans per plant, which varied in the Eureka bean variety from 4.72 pcs. per plant in variants without pre-sowing seed treatment (control) up to 5.95 pcs. on the plant. In plants of the Mavka bean variety, this indicator varied from 7.94 pcs. per plant in the version without treatment up to 8.95 pcs. on the plant, and in the Lastivka bean variety with 4.84 pcs. per plant in the version without treatment up to 5.62 pcs. on the plant. The highest grain yield was obtained from bean plants of the ordinary Mavka variety by the wide-row sowing method, which amounted to 3.52 t/ha. On average, over the years of the study, the highest crude protein content was obtained in plants of the Eureka variety in the variant with pre-sowing seed treatment with Rhizobophyte, 24.12%. The highest net profit of UAH 13,675.17/ha with a profitability level of 106.34% was obtained in the Eureka bean variety in variants with pre-sowing Rhizobophyte seed treatment.