M. M. Kochkar
Volgograd State Agrarian University
Russian Federation

Kochkar Maksim Mikhailovich, Candidate of agricultural sciences, 

400002, Volgograd, Universitetsky pr., 2

O. M. Vorobieva
Volgograd state agrarian University
Russian Federation

Vorobieva Olga Mikhailovna, Candidate of Agricultural Sciences, 

400002, Volgograd, Universitetsky pr., 26

A. V. Vdovenko
Volgograd state agrarian University
Russian Federation

Vdovenko Anastasia Vasilievna, Candidate of Agricultural Sciences, 

400002, Volgograd, Universitetsky pr., 26

N. M. Generalova
Federal Scientific Center of Agroecology, Complex Melioration and Protective Afforestation of the Russian Academy of Sciences
Russian Federation

Generalova Natalia Mikhailovna, Applicant,

400062, Volgograd, Universitetsky pr., 97