Fertilization of Annual Range in Northern Israel

Abstract

Trials were run for two years on eight typical range sites in the north of Israel to assess the effect of nitrogenous and phosphatic fertilizers on a sward composed of mixed annual mediterranean species. Responses of economic value were obtained where the vegetation grew on terra-rossa, on colluvium-alluvium derived from terra-rossa and on reddish-brown basaltic grumosol. On dark-brown basaltic grumosol and on light-coloured rendzina the response was too small to be of economic significance. The effect of fertilization on early growth was larger and more consistent than on the flush season yield.