Kopylov B.A., Gromakov A., Turchin V.

Using of bacterial remedies in sunflower cultivation in the Rostov region

In a two-year field experiment in the Rostov region, the effect of separate and joint use of mineral fertilizers and biologics with strains of associative nitrogen fixators produced by the all-Russian research Institute of agricultural Microbiology was studied. A positive effect on the productivity of the sunflower hybrid LG 5485 of all tested methods was found. This technique improves the productivity of the crop on 12.0 percent. In the system of intensive technology of cultivation of sunflower dopamine the use of mineral fertilizers dose N30Р40 it is advisable to application at seeding the introduction of the biological product Minorin 204 – this combination provides increased productivity by 19.3% and efficiency of fertilizers – payment of yield increase unit of fertilizer - more than 2 times

Keywords: ASSOCIATIVE NITROGEN FIXATION, SUNFLOWER, BACTERIAL PREPARATIONS, YIELD