Ammonia per bushel of corn from: https://www.canr.msu.edu/news/nitrogen-rate-trial-results-in-michigan-s-thumb https://www.canr.msu.edu/news/nitrogen-rate-trial

Ammonia per bushel of corn from: https://www.canr.msu.edu/news/nitrogen-rate-trial-results-in-michigan-s-thumb https://www.canr.msu.edu/news/nitrogen-rate-trial-results-in... US Ammonia production per year: https://www.eia.gov/naturalgas/weekly/archivenew_ngwu/2021/04_01/ https://www.eia.gov/naturalgas/weekly/archivenew_ngwu/2021/0...