Influence of organic fertilization on phytodiversity of a Festuca valesiaca schleich. Grassland

The application of organic fertilizers for extended period of time has determined a high biodiversity of the investigated grassland. The objective of this study is to determine the effect of sheep and cattle manure application on grassland and the effect on phytodiversity of a Festuca valesiaca Schleich. Type association. A high similarity appears by comparing the phytocenosis from V8 fertilization variant (30 t/ha cattle manure/3 year basis) and that of V9 fertilization variant (40 t/ha cattle manure/3 year basis) (T = 0.49176925, A = - 0.05105096), yet differences were not statistically signifficant. The phytocenosis from unfertilized variant (V1), is largely dominated by grasses or Poaceae botanical family, with a dominance of 28% in the sward. Within grasses, the species with the highest Adm value is Festuca valesiaca L. 15.5%, followed by Arrhenatherum elatius L. 4% and Dactylis glomerata L. 1.3