Mohsen Bagheri Dehabadi; Hossein Moghadam; Mohammad reza Chaichi; Nasrin ziloee
Abstract
To assess the effects of bio-fertilizer and some of microelements on quantitative and qualitative characteristics of sorghum (var. Pegah), this experiment was conducted at the research farm of the University of Tehran (Karaj-Iran) in 2011. The experiment was arranged as split plot based on complete randomize ...
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To assess the effects of bio-fertilizer and some of microelements on quantitative and qualitative characteristics of sorghum (var. Pegah), this experiment was conducted at the research farm of the University of Tehran (Karaj-Iran) in 2011. The experiment was arranged as 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<0.01) and reduced acid detergent fiber (p<0.05). However, foliar of Fe and Zn had no significant effects on root colonization. Also, investigated factors had no significant effects on number of leaves. The treatment of mycorrhiza and foliar application of the Fe and Zn in concentrations of four and three per thousand (respectively) produced the maximum of dry yield. This treatment increased yield by 40% compared with control. Based on the obtained results, treatment of myco-Fe4Z3 can be recommended for increasing yield and improving qualitative characteristics of forage sorghum (var. Pegah) in Karaj region.