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        1 - The Effects of Irrigation with Innovative Compost Tea from Food Waste on Some Tomato Traits
        Nasim Golestanehzadeh Javad Razmi Masoud Honarvar
        Background and Aim: Food waste is one of the biggest challenges in today’s modern world and leads to greenhouse gas emissions and global warming issues. Converting organic waste into vermicompost and compost tea by efficient biotechnology methods could prevent nat More
        Background and Aim: Food waste is one of the biggest challenges in today’s modern world and leads to greenhouse gas emissions and global warming issues. Converting organic waste into vermicompost and compost tea by efficient biotechnology methods could prevent natural resources depletion and decrease carbon footprint. These soil conditioners promote soil fertility, crop yields, soil resources conservation, and community health.Method: Based on this study, organic waste of the industrial kitchen of the science and research branch university, was converted to vermicompost. The compost tea was produced by a mixture of seaweed, vermicompost, molasses, and humic acid. Greenhouse studies to compare the effect of experimental treatments including irrigation level with compost tea 25, 50, and 100% and chemical fertilizer containing calcium nitrate, potassium sulfate, and 10-52-10 fertilizer on vegetative and biochemical traits of tomato (Karun variety) in six replications were performed.Results: The results showed that irrigation with 100% compost tea and chemical fertilizer, were not significantly different from each other and had the highest effect compared to other treatments. Irrigation with 100% compost tea had the greatest effect on leaf number (66 pieces), plant height (29.8 mm), root length (660 mm), and root fresh weight (29.84 mg). The highest number of flower clusters (8.94 clusters), root diameter (8.94 mm), peroxidase enzyme (3.5 µmol mg-1 protein min-1), chlorophyll a (14.44 mg g-1 FM), and total chlorophyll content (191.91 mg g-1 FM) obtained from 25% compost tea.Conclusion: There was no difference between irrigation with 25 and 100% compost tea, and chemical fertilizers. Furthermore, they had similar effects on most of the studied traits. So, irrigation with compost tea can decrease chemical fertilizers in tomato fields and leads to soil conservation. Manuscript profile
      • Open Access Article

        2 - Effects of different organic fertilizers on quantitative and qualitative characteristics of Melissa officinalis L. under Glomus mosseae mycorrhizal symbiosis
        Mostafa Koozehgar kaleji Mohammad Reza Ardakani
        In order to evaluate the effect of organic and biological fertilizers on quantitative and qualitative characteristics of Melissa officinalis L. a factorial experiment was conducted in a completely randomized design with 4 replications in the form of open air pot co More
        In order to evaluate the effect of organic and biological fertilizers on quantitative and qualitative characteristics of Melissa officinalis L. a factorial experiment was conducted in a completely randomized design with 4 replications in the form of open air pot conditions in Sari, in 2015. The factors examined included Mycorrhizal fungi (Glomus mosseae) (0 and10% of the pot volume), vermicompost (0 and 10% the pot volume), and compost tea (0 and 1.5 liter). Some characteristics such as number of flower, nitrogen, phosphorous, and potassium contents of aerial parts. Results showed that application of organic and mycorrhizal fertilizers had a significant impact on all measured characteristics and increased the number of flowers and fresh weight when compared with those of the control group so that the highest nitrogen concentration and the stem diameter were obtained from the combined mycorrhizal symbiosis, compost tea, and vermicomposting treatment.  The triple interaction effects showed that the absence of vermicompost with compost tea, and mycorrhizal symbiosis treatments increased the fresh weight compared to the control. Results also indicated that using vermicomposting, compost tea, and mycorrhizal symbiosis through the availability of nutrients increased the yield and improved qualitative and quantitative characteristics of Melissa officinalis L.. Manuscript profile