Influence of biologics on the productivity of winter wheat varieties under irrigation conditions

The aim of the research was to determine influence varietal characteristics, pre-sowing seed treatment and irrigation on yield winter wheat (Triticum aestivum L.). Experimental studies were carried out in conditions Mykolayiv National Agrarian University (Ukraine) during 2019-2022 yrs. It found that among studied variety wheat, highest grain distinguished by ‘Ozerna’ ‘Duma Odes’ka’. On average, for pre – sowing options, these formed yields at level 6.78 6.95 tha–1, which higher than ‘Anatoliya’ 4.1 up 6.5%, then ‘Ovidii’ 3.9 6.3%. proved preparations contributed formation more productive stems mass from one ear plants. So, over years research, use Azotofit-R, number increased 34-74 PCs./ m2 compared other options. At same time, also slightly with Azotofit-R biologics. provided an increase 1.66-2.19 tha–1 or 23.1-27.2%, depending variety. Odes’ka’ had a under (8.06 tha–1), while without irrigation, plants (5.87 tha–1). cultivation Azotofit - R biologics irrigation–8.38 tha–1.