In 2014-2016 at the Research Institute of Mountain Stockbreeding and Agriculture-Troyan. we followed the change in the qualitative composition of dry biomass from two-component grass mixtures. The grasslands with the mixture of Trifolium repens L. -Poa pratensis L. https://www.hindigyanvishv.com/deal-time-Universal-Steering-Wheel-Control-Input-Interface-APUNISW2-hot-grab/