Near‐Optimal Management Strategies for Controlling Wild Oats in Spring Wheat
提出近最优的多期决策规则,用于控制蒙大拿中北部春小麦中的野燕麦,决策包括休耕、使用除草剂或不使用除草剂,规则依赖于野燕麦种子密度、土壤湿度、小麦价格等因素。
Abstract Near‐optimal multiperiod decision rules for controlling wild oats in spring wheat in north central Montana are presented in this paper. Decision alternatives are fallow, use of a preemergent or postemergent herbicide, and crop without use of a herbicide. The near‐optimal decision rules, which were obtained from a partially decomposed stochastic dynamic programming model, depend on density of wild oats seed in the plow layer, whether the land was previously cropped or fallow, soil moisture level, price of spring wheat, and post‐planting density of wild oats.