Li-hong TONG, Ling ZHU, Nan ZHAO, Yi-zhong LÜ, Xia-yan LIU, Shan JIANG, Ying-xin LI. Spectroscopic Characteristics of Soil Humus Components Under Different Proportions of Organic and Inorganic Fertilizers[J]. Spectroscopy and Spectral Analysis, 2021, 41(2): 523