1. Define biological nitrogen fixation (BNF) and write the overall equation describing the process.
  2. Describe the benefits of BNF in economic and environmental terms.
  3. Approximate the amount of BNF that is contributed by various forage crop communities.
  4. List and discuss factors that affect the quantity of nitrogen fixed by forage legumes.
  5. Describe the processes of infection and nodulation in forage legumes.
  6. Describe the process of inoculation in the production of forage legumes.