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An experiment was conducted during the spring 2019 in one of experimental fields belong to the Faculty of Agriculture/University of Al-Qadisiyah, to study the response of two common beans Phaseolus vulgaris varieties (Pole and Bush) to bio-fertilization with Rizobium phaseoli sp with or without the presence of two mineral elements (iron and molybdenum) and their interactions, and the treatments effect on plant vegetative growth, chemical content and yield. The experiment factors included the two beans varieties (Pole and Bush), bio-fertilizer of Rizobium Phaseoli (inoculated and non-inoculated), Nano-scale elements of iron 80 mg.L, molybdenum 10 mg.L) and all the possible interactions. The seeds were treated with bio-fertilizer before planting while the nanoscale elements treatments were applied one month of after planting. Measurements were taken at the end of the growing season at harvest. The results showed that the use of bio-fertilizers and Nano-scale elements improved the traits of growth, yield and chemical content of the plant. The results showed that the plants treated with bio-fertilizer (inoculated) resulted in higher values and significantly differed from the untreated with bio-fertilizer (noninoculated) by recording the highest averages for all the studied traits including plant height, number of branches/plant, leaf area, leaf content of nitrogen and number of pods.plant. The addition of Nano-scale mineral elements also led to a significant increase in the studied traits especially the combined treatment (iron 80 mg.L+ molybdenum 10 mg.L). as the treatment with the mixture of elements recorded the highest rates. In case of plant varieties, the variety Bush performed higher than the Pole in all the studied traits except for the plant height. Best results of the growth and yield were obtained from the interaction of Nano-scale elements mixture and bio-fertilizer with Bush variety followed by the same interaction with Pole.

EFFECT OF BIO-FERTILIZER AND NANO-ELEMENTS ON GROWTH AND YIELD OF TWO PHASEOLUS VULGARIS L. VARIETIES