Factors influencing the efficient use of Biofertilizers

Tolerance limit of biofertilizers

In case of Rhizobium, Azotobacter, Azospirillium and Phosphate Solubilizing Bacteria, the total viable count shall not be less than 1 x 107 CFU per g of carrier material in the form of powder or granules or 5 x 107 CFU per ml in case of liquid formulations during the entire period of shelf life.

In case of Mycorrhizal Biofertilizers, the viable propagules shall not be less than 80 per g.