This study estimates a system of supply equations for major field crops in Turkey and evaluates alternative agricultural policies for crop supply control. The author suggests that the supply of major field crops in Turkey responds significantly to both own-price and substitute price changes. The Turkish wheat price or gross return is the most important factor determining area allocation in Turkish field crops. Findings from this study will be useful to policy makers who establish agricultural policy on issues such as crop support prices, input subsidies, and input restrictions
