Effect of bean inoculation with Rhizobium phaseoli on soil microbial activity
2006
Marinkovic, J. (Institute of Field and Vegetable Crops, Novi Sad (Serbia))
The objective of this study was to assess the effect of inoculation of different bean genotypes (cv. Belko, Sremac) with Rhizobium phaseoli on soil microbial activity. Immediatelly before planting, bean seed were inoculated with Rhizobium strains. The obtained results showed that the abundance of the microbial groups depended on bean genotype. The average two-year results indicated that inoculation significantly affected the number of microorganisms in the soil. With cv. Belko, the numbers of azotobacters, actinomycetes and the total number of microorganisms were higher in the inoculted variants than in the control. Cv.Sremac had increased numbers of azotobacters and free nitrogen-fixing bacteria. Inoculation had no effect on the numbers of fungi and ammonifiers, with the exception of cv. Sremac at the end of growing season, when the number of ammonifiers was increased. The examined strains exhibited various effects on soil microbiological activity.
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