Article I read that I thought I would share. Not about hay but talks about costs.
(Not sure why it asks if "are you a robot")
Corn Is Out, Soy Is In on U.S. Farms Rocked by Soaring Costs
Two crops dominate U.S. farming: corn and soybeans. The former requires massive amounts of fertilizer. The latter requires very little.
www.bloomberg.com
(Not sure why it asks if "are you a robot")