The Choice of Crop Rotation: A Modeling Approach and Case Study
提出一种线性规划模型,允许自由确定最优长期轮作方案,无需预设轮作模式,并在俄勒冈州东北部农场用历史数据测试了风险中性和风险规避两种情形。
Abstract Many farming situations involve crop rotations. This has led to many farm linear programming models which explicitly include crop rotation considerations. However, for the most part crop rotations have been modeled using explicit predetermined rotations. An attempt is made to relax this requirement, allowing the model to determine freely the optimal long‐run rotation. The approach is tested on a Northeastern Oregon farm. Data are developed using regression analysis of historical cropping records. Risk‐neutral and risk‐averse formulations are tested. The model develops a plausible set of rotations and does not require the rotations to be predetermined.