Shabnam Moradi; Babak Pasari; Reza Talebi
Abstract
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 ...
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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 interaradices) and subplots were organic and chemical fertilizers in five levels as, control (distilled water), fulvic acid, seaweed extract (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 value 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 was obtained by seaweed extract, and the maximum leaf dry in hectare was 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 + seaweed extract + urea.