文章基本信息

标题：A Dynamic Optimal Control Model of Crop Thinning
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作者：Schamel, Guenter ; Schubert, Stefan F.
期刊名称：Journal of Agribusiness
印刷版ISSN：0738-8950
出版年度：2012
期号：Suppl
出版社：Journal of Agribusiness
摘要：We develop a general optimal control model of crop thinning applicable to settings in agriculture, horticulture and viticulture. Using a simple optimal control model for the land owner’s profit maximization problem, relevant scenarios are discussed using phase diagram analysis: (1) when the initial crop quantity is sufficiently small, crop thinning is not optimal, (2) when the initial crop quantity is high, it is optimal to thin the crop from the beginning of the relevant planning horizon and to reduce it over time until the stock of the crop has arrived at its optimum. From thereon, crop quantity evolves solely according to natural growth and/or decay. Depending on the model's parameters, this “stopping time” is reached sooner or later.
关键词：Crop thinning;yield management;optimal control