Assessment of Portable Chlorophyll Meters for Measuring Crop Leaf Chlorophyll Concentration. - Taifeng Dong; Jiali Shang; Jing M. Chen; Jiangui Liu; Budong Qian; Baoluo Ma; Malcolm J. Morrison; Chao Zhang 018; Yupeng Liu 004; Yichao Shi; Hui Pan; Guisheng Zhou (Remote. Sens., 2019)