Institute of Upland Stockbreeding and Agriculture, BG-5600 Troyan, Bulgaria
LINGORSKI, V., 2001.Comparatively investigation of some temperate grasses and legumes for hay production. Bulg. J. Agric. Sci., 7: 309-312
The influence of the harvest-haymaking phase of different sown perennial grass and legume cultivars on the dry matter productivity and botanical changes of the swards, cultivated in a foothill region of Central Northern Bulgaria (Troyan region) during the period 1993-1998, was studied.
During the six year of investigation by grasses a maximum dry matter yield (12.16 t.ha–1) was obtained of phalaris cv. Maru (from New Zealand), which exceeded with 14.0 % the standard (orchard grass with total origin from Bulgaria). By legumes the maximum productivity was determinated from white clover cv. Milka Pajberg (from Belgium) – 6.81 t.ha–1.
During the period 1993-1998 the sown grasses in monoculture crops and in the mixture were prevailed in the swards while there was the greatest weed infestation in the white clover cultivars in the same crops.