In this paper are presented our results regarding the influence of mineral and organic fertilization on the Na, K, Ca and Mg contents in forages harvested from a permanent meadow situated in a hill region of Banat County (Grădinari; Caraş-Severin). Mineral fertilizers used were NPK complex, ammonium nitrate, super phosphate and potassium salt. Fermented manure sheep was used like organic fertilizer. The mineral fertilization was made yearly, whereas the sheep manure was applied at each two years. The Na, K, Ca and Mg contents have been analyzed using flame atomic absorption spectrometry (FAAS). The correlations between analyzed minerals contents in forages and mineral or organic fertilizers are discussed. Both fertilizers influenced the Na, K, Ca and Mg contents of the forages, but in different manner.

minerals; mineral fertilization; organic fertilization; forages; permanent meadow

Presentation: oral