Ned C. K.’s Answer
Great question. So I hear you are interested in learning about this industry. Awesome! What particular areas within agriculture are you interested in learning more about and for what specific purpose? I notice you are wanting to visit a farm and with that said I'd recommend two sites to begin your search. My family was a part of the Future Farmers of America and this is a great resource. https://www.ffa.org/. Additionally, I'd take a look at https://www.fsa.usda.gov/ .
Good luck with your search and take care.