Song, L. , Ye, W. , Wang, S. , Liu, S. , Wang, M. , Su, G. and Bi, H. 2023. Development and Test of Rice Nitrogen Nutrition Index Estimation Model Based on Airborne Multi-Spectrum. Bangladesh Journal of Botany. 52, 20 (Aug. 2023), 529–538. DOI:https://doi.org/10.3329/bjb.v52i2.68217.