A simple visible and near-infrared (V-NIR) camera system for monitoring the leaf area index and growth stage of Italian ryegrass. - Xinyan Fan; Kensuke Kawamura; Wei Guo 002; Tran Dang Xuan; Jihyun Lim; Norio Yuba; Yuzo Kurokawa; Taketo Obitsu; Renlong Lv; Yoshimasa Tsumiyama; Taisuke Yasuda 001; Zuomin Wang (Comput. Electron. Agric., 2018)