M. R. LAK1, M. A. KHODSHENAS2 and L. FARAHANI3
1 Department of Plant Protection, Markazi Agricultural and Natural Resources Research and Training Center, AREEO, Arak, Iran
2 Department of Soil and Water, Markazi Agricultural and Natural Resources Research and Training Center, AREEO, Arak, Iran
3 Young Researches and elite clubs, Islamic Azad University, Arak Branch, Arak, Iran
LAK, M. R., M. A. KHODSHENAS and L. FARAHANI, 2016. Effects of Rhizobium Strains and Sources of Nitrogen on Fusarium Root Rot Severity and Yield of Bean. Bulg. J. Agric. Sci., 22: 228–233
In order to investigate the effect of Rhizobium strains and different sources of nitrogen on bean plant (Phaseolus vulgaris L.) in the naturally contamination field to fusarium root rot, an experiment was conducted in complete randomized block in Bean Research Station in Khomein, Iran. The treatments were three strains of Rhizobium 116, 134, 156, urea, sulfur coated urea (scu), ammonium nitrate, ammonium sulfate, Biosobtil and control. The results showed that the highest and lowest disease severity was in control and Rhizobium 156, respectively. Dry matter was also affected by nitrogen treatments, the highest and lowest amount of dry matter of aerial part in harvesting stage obtained from Rhizobium 116 and control, respectively. Among the sources of nitrogen fertilizers, ammonium nitrate was superior in dry matter production in the both flowering and harvest stages. Maximum of seed yield obtained from ammonium nitrate and ammonium sulfate, although this increase was not significant (p < 0.05).