冬小麦生物量及氮积累量的植被指数动态模型研究

吴亚鹏,贺利,王洋洋,刘北城,王永华,郭天财,冯伟

Dynamic model of vegetation indices for biomass and nitrogen accumulation in winter wheat

Ya-Peng WU,Li HE,Yang-Yang WANG,Bei-Cheng LIU,Yong-Hua WANG,Tian-Cai GUO,Wei FENG

图1 不同水氮处理下的冠层光谱变化 W0: 不灌溉; W1: 拔节期灌溉一次; W2: 拔节期和开花期各灌溉一次。

Fig. 1 Canopy spectral changes under different water and nitrogen treatments W0: no irrigation; W1: irrigation once at jointing; W2: irrigation twice at jointing and anthesis. N0: 0; N6, 90 kg N hm-2; N12: 180 kg N hm-2; N18: 270 kg N hm-2; N24: 360 kg N hm-2.