%0 Conference Article %T Efficiency of cultivation of perennial legume-grass mixtures on gray forest soils of Kaluga region %A Lukashov, V.N. %A Korotkova, T.N. %A Isakov, A.N. %K grass mixture, metabolic energy, crude protein, energy efficiency ratio, sugar and protein balance, humus, soil acidity %J Multifunctional adaptive fodder production23 (71) %D 2024 %P 4 %I Federal Williams Research Center of Forage Production and Agroecology