邹城市主要农作物的光温生产潜力

Photo-Temperature Productivity of Main Crops in Zhoucheng

农业生态区域法是基于在实际耕作条件下 ,作物和水的管理达到最佳时 ,获得农作物最高产量的计算方法 ,即农作物光温生产潜力取决于温度、辐射和生长季长度。应用该方法计算了邹城市主要农作物冬小麦和夏玉米的光温生产潜力 ,分别为 12 349kg·hm-2 和 16 779kg·hm-2 ,与目前的实际产量相比 ,冬小麦和夏玉米的增产潜力分别为 6 84 9kg·hm-2 和 92 79kg·hm2 。提出了农业生产中进一步提高作物产量的主要途径。

The agro-ecological area method is to gain the optimal yields based on the actual cultivating conditions with optimal crop and water management. The photo-temperature productivity is depended on temperature, radiation and growing-season length. Using the method, the photo-temperature productivity of winter wheat and summer corn in Zhoucheng, Shandong Province was computed: 12349 kg/hm 2 and 16779 kg/hm 2. The actual yields for winter wheat and summer corn are 5500 kg/hm 2 and 7500 kg/hm 2, and potentials for yield increment are 6849 kg/hm 2 and 9279 kg/hm 2, respectively. It means that there is great potential for yield increment. The major approaches to the increase of agricultural production output are discussed.