Park, Seong Cheol; Stoecker, Arthur L.; Hattey, Jeffory A. - Southern Agricultural Economics Association - SAEA - 2007
Dynamic optimization compared the NPV of manure and ammonium fertilizers on irrigated corn. Yield, soil residual nitrogen and pH functions were estimated from a six year experiment in Oklahoma. Results show that given prices of corn and nitrogen fertilizer, animal manures provide a higher NPV of...