Assessing the Effectiveness of Seedling Preparation Method and Mycorrhizal Inoculants for Enhancing Teak Seedling (Tectona grandis Linn. F) Growth and Soil Biological Activities

Abimanyu D. Nusantara1*, Cecep Kusmana2, Irdika Mansur2, Latifah K. Darusman3, Soedarmadi Hardjosoewignyo4

1 School of Graduate Study, Institut Pertanian Bogor, and Laboratory of Soil Biology, Universitas Bengkulu, Indonesia.

2 Department of Silviculture, Institut Pertanian Bogor, Indonesia.

3 Department of Chemistry, Institut Pertanian Bogor, Indonesia.

4 Department of Animal Nutrition, Institut Pertanian Bogor, Indonesia.

* Corresponding author: abimanyu.dn@gmail.com

ABSTRACT

The study was aimed at investigating the effect of teak (Tectona grandis L.) seedling preparation method and mycorrhizal inoculation in increasing of Solomon teak seedling growth and soil biological activity. The results showed that mycorrhizal inoculation on bareroot method reduce teak seedling growth, however, produce growth media with better nutrient content and biological activity.  Producing teak seedling, with bareroot or polybag method, should be fertilized and vermicompost was the alternative fertilizer and gave same effect to the synthetic 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. G. etunicatum was not suggested for production of Solomon teak seedling from tissue culture. Other mycorrhizal species which probably more effective than G. etunicatum was suggested for teak seedling production.

Keywords: teak – bareroot – vermicompost – mycorrhiza

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