V. M. Garmashov
Scientific Research Institute of Agriculture of the Central Black Earth Region named after V. V. Dokuchaev
Russian Federation

I. M. Kornilov
Scientific Research Institute of Agriculture of the Central Black Earth Region named after V. V. Dokuchaev
Russian Federation

N. A. Nuzhnaya
Scientific Research Institute of Agriculture of the Central Black Earth Region named after V. V. Dokuchaev
Russian Federation

V. N. Govorov
Scientific Research Institute of Agriculture of the Central Black Earth Region named after V. V. Dokuchaev
Russian Federation

M. P. Kryachkova
Scientific Research Institute of Agriculture of the Central Black Earth Region named after V. V. Dokuchaev
Russian Federation