Abstract
In the present paper the authors present the effect of additional sowing and fertilization on the grassy cover structure of a permanent meadow form the hilly and mountain area of Slănic-Buzău basin.
 Additional sowing was done with a mixture formed by 70% grasses and 305 legumes.
 Fertilization was made with chemical fertilizers based on N, P, K in different doses and combinations, manure (20 and 30 t/ha) and vinassa (4, 5, 6 and 7 t/ha) on a phosphorous agri-fund.
 At the end of our researches we observed that by additional sowing increased the percentage of legumes in the grassy cover, decreased the participation of the plants from other groups, and the quality of fodder was also improved.
 Fertilization influenced in a small manner the structure of grassy cover.
 On the mountain meadows the changes in the grassy cover structure were much more stronger in comparison with the ones on the hilly meadows.
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