| Organism |
Activity |
Association if any |
Used in crops |
Projected demand in India by 2000 AD (tons/yr)* |
| Rhizobium (leguminosarum, japonicum, phaseoil, etc.) |
N2-fixation |
Symbiotic |
Legumes (pulses, oilseeds, forage crops) |
14,875 |
| Azospirillum |
N2-fixation |
Associative |
Graminaceous crops like wheat, rice, sugarcane, jowar** |
98,528 |
| Azotobacter |
N2-fixation |
Asymbiotic |
Wheat, rice, vegetables |
-- |
| Blue-green algae (Anabaena, Nostoc, Plectonema, etc.) |
N2-fixation |
Asymbiotic |
Rice |
2,05,250 |
| Azolla-Anabaena complex |
N2-fixation |
Symbiotic |
Rice |
-- |
| Phosphate solubilizing bacteria (Thiobacillus, Bacillus, etc) |
Phosphate solubilization |
Asymbiotic |
Many crops |
-- |
| Mycorrhiza (Glomus) |
Phosphate solubilization |
Associative |
Many crops including pulses |
-- |
|
