Farm-Level Evaluation of Planting Flexibility Proposals for the 1990 Farm Bill, Effects on Use of Corn Rootworm Insecticides and Nitrogen
以爱荷华州一个农场为例，评估种植灵活性政策能否通过促进轮作来减少玉米根虫杀虫剂和氮肥的使用，对关注农业环境政策的学者有参考价值。
Since the 1985 Food Security Act (1985 FSA), increased concern for environmental and health risks associated with the use of chemicals in U.S. agriculture has changed the focus of legislative debate. One of the major responses to these concerns has been discussion of ways to give farmers greater flexibility in planting. Those proposing more flexibility promote it as a means of encouraging crop rotations and other alternatives to intensive chemical use. This study investigates the effectiveness of such provisions for (1) shifting rotations and (2) reducing applications of corn rootworm insecticide and nitrogen on a case-study Iowa farm. A specialized version of the Comprehensive Economic and Environmental Policy Evaluation System (CEEPES), developed at the Center for Agricultural and Rural Development (CARD), was utilized for the empirical assessment.