The influence of seed inoculation with a bio-preparation of nodule bacteria Rhizobium leguminosarum, fertilization of 0, 40, 80, 120 kg N/ha and molybdenum topdressing on the yield of green mass, dry ma�er, seed, average number of pods per plant, average number of seeds per pod, average nodule number per plant, nodule dry weight as well as plant and seed protein concentration were studied during the two years of investigations on two soils -Mollic Gleysols and Eutric Cambisols. The highest values of all investigated parameters were obtained in the inoculated seed variants with molybdenum application, except the average nodule number per plant where the highest values were achieved in variants without molybdenum. The effect of nitrogen fertilization depended on the soil type, i.e. its chemical properties. The largest number of the investigated parameters obtained the highest values as a result of fertilization with 40 kg N/ha on Mollic Gleysols (3.96% humus). Thus, seed yield was 4.02 t/ha, nodule dry ma�er 0.482 g per plant whereas seed protein concentration was 26.91%. The largest number of the investigated parameters on Eutric Cambisols (1.07% humus) obtained the highest values with fertilization of 80 kg N/ha where seed yield amounted to 3.65 t/ha, nodule dry ma�er 0.456 g per plant while seed protein concentration was 26.48%.

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The influence of mycorrhizal fungi on field pea green mass yield, dry ma�er yield, grain yield, number of pods per plant, number of grains per pod, average number of plants per m 2 , grain concentration of nitrogen, phosphorus and potassium were studied in the greenhouse during two investigative years. The best results with all parameters were obtained in both investigative years by seed inoculation with the mycorrhizal species G. mossae. The exceptions were mean green mass yield, dry ma�er yield and the number of grains per pod in the second investigation year (irrigation rate -240 mm/m 2 ) where be�er results were achieved by seed inoculation with species G. intraradices. The highest green mass yield obtained by seed inoculation with mycorrhizal species Glomus mossae was 671.45 g/m 2 , dry ma�er yield 59.40 g/m 2 , grain yield 346.20 g/m 2 whereas grain nitrogen concentration was 4.08%. Far be�er results of all yield and quality indicators of this plant compared to non-mychorrized variants were accomplished by mycorrized variants in water lacking conditions.