The influence of vesicular - arbuscular Mycorrhiza fungi (VAM) on
symbiotic fixation of N٢ in alfalfa plants has been observed. Beneficial effects of
VAM plants in saline soil are of great interest. The aim of this work was to
study the effect of
VAM or phosphorous fertilization on alfalfa (Medicago
sativa L.) yields, number of nodules and N٢ fixation by N١٥ isotope dilution at
different salinity levels.
