Government may influence what a farmer grows, where a farm is located, how products are transported and processed, how a commodity is traded, the price the farmer might receive, and much, much more.
Begin by researching Agricultural Policies in the United States.
Pick one that you find most interesting.
Find peer-reviewed sources about this policy.
What does this act or policy do?
How does the government affect agriculture with this policy?
Does it help or hinder the industry? How?
How did this policy come into effect?