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Assessing the effectiveness of seedling preparation method and mycorrhizal inoculants for enhancing teak seedling (Tectona grandis Linn. F) growth and soil biological activities
Researcher : A. D. Nusantara
Published : 2009
Group :Forestry
Full Report : Special request
Abstract :
The study was aimed at investigating the effect of teak (Tectona grandis L.) seedling preparation methods and mycorrhizal inoculation in increasing of Solomon teak seedling growth, mineral nutrition absorption, and soil biological activity. The research was conducted in split-split plot design with three replications. The main plot was seedling preparation method (polybag vs bareroot). Sub plot was G. etunicatum inoculation (with and without). Sub-sub plot was three sources of nutrient (NPK fertilizer, vermicompost, and, chicken egg shell powder). The results showed that mycorrhizal inoculation on bareroot method reduce teak seedling growth. However, bareroot method produce growth media with better nutrient content and biological activity compare to polybag method. Producing teak seedling, with bareroot or polybag method, should be fertilized and vermicompost was the alternative fertilizer and gave same effect with mineral fertilizer. Vermicompost application gave better influences to growth, macro nutrients absorption of 26 weeks old teak seedling grown on bareroot either polybag in comparison to NPK and eggshell powder application. Vermicompost also gave better result for increasing biological activity and chemical characteristics of teak seedling growth media. Mycorrhizal inoculation was not suggested for production of teak seedling from tissue culture. Other mycorrhizal species which probably more effective than G. etunicatum was suggested for teak seedling production by bareroot method

Keywords: G. etunicatum, T. grandis, vermicompost, eggshell powder, bare root.