观察农作物叶子的变化,监测长势,及时预报病虫害,选择适当的追肥时间等已成为小产上实际问题。特別是根据分光反射率的不同进行农作物分类,从而掌握作物长势、成熟度和收获量等。在此基础上,再结合“气星卫星” Observing the changes of crop leaves, monitoring the growth, timely prediction of pests and diseases, and selecting the appropriate top-dressing time has become a practical problem in small-batch production. In particular, the classification of crops according to the difference of spectral reflectance, in order to grasp the crop growth, maturity and harvest and so on. On this basis, combined with “Star satellite”