The Interacting effect of sulphur oxidizing bacteria Thiobacillus thioparus and organic matter on the growth and yield of wheat (Triticum aestivum L.)

The biological study experiment included the effect of inoculation with sulphur-oxidizing bacteria T. thioparus and its interaction with levels of organic matter. In addition, a biological vaccine for T. thioparus and the second factor is the organic matter at three levels control by without adding (0%, 0.5%, 1 %) the results of the statistical analysis showed that the biological Inoculation. T. thioparus treatment gave the highest levels of grain yield, numbers of T. thioparus bacteria, soil content of available nitrogen and soil content of available sulphur (4.74 mg.h-1, 0.22×104 CFu gm-1 soil, 54.27 mg N kg soil-1, 3131.39 mg S kg soil-1) respectively. While treatment with the second level of organic matter 1% gave the highest levels of the numbers of T. thioparus bacteria and the nitrogen content available in the soil and the sulphur content available in the soil (0.23×104 CFu gm-1 soil, 5163 mg N kg soil-1, 2796 mg S kg soil-1) respectively. In addition to the interactive treatments of biological inoculation of T. thioparus and organic matter of B1O2 of T. thioparus numbers, nitrogen content available in soil and soil sulphur content available (0.24×104 CFu gm-1 soil, 59.40 mg N kg soil-1, 3326.87 mg S kg soil-1) respectively.