Effects of Manure Use and Use Restrictions on Variable Production Costs and Net Incomes for U.S. Corn Producers
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We utilize a treatment effects model to examine if there are differences in costs/profits for
manure-using corn producers versus non-users. We find that manure users have lower peracre
operating costs via reductions in fertilizer and soil conditioner costs; however, the use
of manure reduces grain yields and ultimately leads to no difference in profit. Separate
results indicate that manure-use restrictions do not affect costs or profits; thus policies
could be in place to regulate manure usage without impacting the costs/profit structure of
the farm.