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本文分析研究了鄂南棕红壤综合开发区贺胜桥镇，１９８１年—１９９０年十年主要粮食作物（水稻、小麦、玉米、大豆、红薯）的生态适应性。结果表明，五种粮食作物在丰年、平年、歉年和正常年的生态适应性有较大差距。并将各种作物的生态适应性指数引入线性规划模型的约束条件，增加适应性好的作物的播种面积，减少适应性差的作物播种面积。以高产、稳产和提高经济效益为目标得出该镇不同年型下粮食作物种植面积的优化方案。比较优化方案和１９９０年实际生产情况，认为优化方案是可行的，对于贺胜桥粮食作物布局具有较大的指导意义。
This paper analyzes and studies the ecological adaptability of major grain crops (rice, wheat, maize, soybean, sweet potato) in He Shengqiao Town, a comprehensive development zone of brown soil in the southern Hubei Province, from 1981 to 1990. The results showed that there was a big gap between the ecological adaptability of five kinds of food crops in harvest years, average years, poor years and normal years. The ecological adaptability index of various crops is introduced into the constraints of linear programming model to increase the sown area of well-adapted crops and reduce the sown area of poorly adapted crops. With the goal of high yield, stable yield and economic benefit, the optimal plan of the area of grain crops under different years was obtained. Comparison of optimization programs and actual production in 1990, that the optimization program is feasible, for He Shengqiao food crop layout has a greater guiding significance.