USING UAV-DERIVED PLANT HEIGHT AS AN ESTIMATOR FOR BIOMASS AND N-UPTAKE - Bareth, G.; Hütt, C.; Jenal, A.; Bolten, A.; Kleppert, I.; Firl, H.; Wolf, J.; Hüging, H. (Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., 2023)