Effects of mycorrhiza, organic and chemical fertilizers on growth of tobacco plant

To study the effects of mycorrhiza, organic and chemical fertilizers on growth of tobacco plant, an experiment was carried out as split plots in a randomized complete block design with three replications in Marivan during 2014- 2015. The main factor was two levels of inoculation by mycorrhiza including: no inoclution and inoclution by mycorrhiza (Glumus inter-aradices) and subplots were organic and chemical fertilizers in 5 levels as, control (distilled water), fulvic acid, seaweed ex-tract (Ascophyllum nodosum), urea and fulvic acid seaweed extract urea. The results showed that the studied characters were not affected significantly by mycorrihza. Also the results of foliar application of fertilizers were showed that the most characters were affected significantly. Mean comparison of lower part of leaves weight showed that maximum leaf fresh weight in hectare and leaf dry weight in hectare was obtained by foliar application of seaweed extract. The maximum val-ue of leaf length was achieved in fulvic acid and urea treatments. Mean comparison of middle part of leaves weight showed that the maximum value of leaf fresh weight in hectare by was obtained by seaweed extract, and the maximum leaf dry in hectare were achieved by fulvic acid and distilled water (control) treatments. In upper part of leaves weight showed the maximum value of leaf fresh weight in hectare and income were obtained by fulvic acid. In this experiment, the highest income was achieved by fulvic acid spraying treatment and following by seaweed extract and fulvic acid sea-weed extract urea.