ABSTRACT
Millions of acres of corn (maize) and soybeans are grown on U.S. farms, and most of these farms plant both corn and soybeans. The two crops are complementary in terms of the timing of operations-soybeans may be planted later without yield loss, and they are usually ready for harvest earlier than is corn. In addition, alternating the two crops on the same land
* Dr. John C.Siemens contributed a major portion of the material from his chapter entitled, “Field Machinery Selection Using and Optimization” in Robert M.Peart and R.Bruce Curry eds., Agricultural Systems Modeling and Simulation, Marcel Dekker, Inc., 1998, 543-565.
