中国主要农作物分生育期Jensen模型研究

Study on Jensen Model at Each Growing Stage for Main Crops in China

通过对农作物分生育期水分生产函数研究分析,明确了Jensen模型在反映分生育期耗水量与产量关系中有较好的表现形式。在此基础上,利用中国灌溉试验资料数据库和一些地区灌溉试验站有关灌溉制度资料。建立了中国各地区主要农作物的Jensen模型,并且对模型的特点以及在应用中可能存在的一些问题进行了探讨。

Through analysis of the water production function at each growing stage of crops, it is indicated that J ensen models has a good expression in the relationship between water consumption at each growing stage and yields. Based on it, the Jensen models for main crops in many areas of China are established by using the relevant irrigation scheduling data from the database of national irrigation experiment and some irrigation experimental stations. In addition, the characteristics of the models and problems possibly existing in the application of the models are discussed.