Determination of biofertilizer potentials of bioslurry for possible application in soil fertility

Author: 
Dr. Akubuenyi, F.C.

The potential of bioslurry as a biofertilizer was determined. This was examined by screening bioslurry for the presence of organisms known for their biofertilizer abilities; Congo red yeast extract mannitol agar medium was used for Rhizobium, Waksman medium No 77 (N-free mannitol agar medium) for Azotobacter and Pikoysksya’s broth for Phosphobacteria (Pseudomonas and Bacillus species). The physical and chemical properties of the bioslurry were also analyzed. Microbiological enumeration of the bioslurry sample revealed that the Total Heterotrophic Bacteria counts ranged from 1.60x1010CFU/ml to 2.05x1010CFU/ml. Result further showed that bioslurry possess bioferilizing organisms; Rhizobium, Azotobacter, Pseudomonas and Bacillus, which aids nutrient uptake, nitrogen fixation and solubilizes phosphate. The physicochemical analysis showed that the bioslurry contains adequate concentration of essential macronutrients (Nitrogen, Phosporous Potassium Calcium and Magnesium).These findings indicate that bioslurry can be used as biofertilizer for the purposes of soil fertility and improved crop production.

Paper No: 
2682