The current formulations of mycorrhizal
biofertilizers are of low quality, have not utilized local
waste raw materials, have low ability to inoculate, have
low contact area with plant roots, and have low inter-ion
bonds, making it difficult to attach to roots and easily
separated from roots, thereby slowing growth, infection
process and short shelf life. This study aims to make
arbuscular mycorrhizal fertilizer formulations into
powder using coconut charcoal as a raw material for the
manufacture of biofertilizers that are easily available,
long-lasting, and of good quality. The experiments were
conducted in greenhouses and agricultural microbiology
laboratories, Faculty of Agriculture, University of
Mataram, Mataram, West Nusa Tenggara, Indonesia.
Parameters measured were moisture content, number of
spores per 20 g of powder, colonization percentage and
shelf life.The resulting arbuscular
mycorrhizal biofertilizer powder formulation has high
quality inoculum potential, high number of spores and
colonization. This product is suitable for farmers because
the technology is simple, easy to manufacture, and can be
used to increase crop production on marginal land.
Keywords : Arbuscular Mycorrhizae; Biofertilizer Raw Materials; Powder Formulations.