The present invention relates to the obtaining and application of a biological inoculant for use in plant material planted in a nursery. In addition, the present invention provides a method of immobilizing bacterial strains on a support and applying them to plant materials. Similarly, the invention relates to the use of native rhizosphere bacteria as a means to promote plant growth. The invention is the development of a biological product based on the application of rhizosphere bacteria in a carbonized teak sawdust powder holder, which allows plants to achieve better characteristics in less time.
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