About improvement of cultivation technology for modem varieties of spring wheat of intensive type in the conditions of Orlovskaya oblast'

In the conditions of the Orlovskaya oblast' the authors have estimated the morphological parameters, productivity and grain quality, tolerance to lodging in connection with density of productive shooting and agricultural background in the Dar'ya, Rostan' intensive varieties of spring wheat and in the Krest'yanka variety (zoning from 1992 year). The availability was revealed for cultivation of the Dar'ya and Rostan' varieties in north part of Central Chernozem oblast' and were determined the optimal norms for sowing seeds and mineral fertilizations.