ESTIMATING THE PLANT NITROGEN CONTENT OF FOXTAIL MILLET (SETARIA ITALICA L.) BASED ON CONTINUOUS WAVELET ANALYSIS. - XIA, F.; FENG, M. C.; ZHU, S. A.; WANG, C.; MU, T. T.; XIAO, L. J.; YANG, W. D.; ZHANG, M. J.; SONG, X. Y.; YANG, H.; QIN, M. X. (Applied Ecology & Environmental Research, 2022)