Study of the mycorrhiza and iron and zinc foliar application on quantitative and qualitative characteristics of forage sorghum

To assess the effects of bio-fertilizer and some of microelements on quantitative and qualitative characteristics of sorghum (var. Pegah), this experiment was conducted in the research farm of the University of Tehran (Karaj-Iran) in 2011. The experiment were arranged in split plot based on complete randomize design block with four replications. Two levels of mycorrhiza (inoculated and non-inoculated) and three levels of foliar application of iron (zero, four and eight per thousand) along with three levels of application of zinc (zero, three and six per thousand) were allocated to main and subplots respectivly. The results indicated that inoculation with mycorrhiza and application of micronutrients had positively significant effect on dry yield, plant height, shoot weight, leaf weight, crude protein, water soluble carbohydrates and ash (p