OPTIMIZATION OF PERENNIAL GRASSES STRUCTURE AS STABILIZATION FACTOR OF FODDER AND VEGETABLE PROTEIN PRODUCTION
The analysis of perennial grasses structure in Belarus is presented in the paper. The structure optimization will provide the increase of perennial grasses acreage on the arable lands from 771 thousand ha to 1034 thousand ha or by 1.34 times, and the increase of herbage gross yield up to 28.99 million tons or by 1.45 times due to the acreage extension of leguminous grasses on the soils with light mechanical composition and high pH where alfalfa and red clover do not grow or form very low productivity. The increase of the herbage gross yields ofperennial grasses up to 17.8 million tons or by 2.1 times will be due to the acreage extension of leguminous grasses up to 549 thousand ha. However, crude protein gross yield will increase from 632.9 to 934.2 thousand tons or by 1.5 times due to higher crude protein yield of leguminous grasses stands (from 275.1 to 575.6 thousand tons or by 2.1 times).