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
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 2, 523 (2021)
Fig. 1. HA and FA contents of soil under different ratios of organic and inorganic fertilizers
Fig. 2. IR spectra of HA under different ratios of organic and inorganic fertilizers
Fig. 3. IR spectra of FA under different ratios of organic and inorganic fertilizers
Fig. 4. CPMAS 13C-NMR spectra of HA under different ratios of organic and inorganic fertilizers
Fig. 5. CPMAS 13C-NMR spectra of FA under different ratios of organic and inorganic fertilizers
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Table 1. Elemental concentration and atom ratio of humic acids and fulvic acid
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Table 2. Ratio between main absorbance peaks of IR spectra of HA and FA under different ratios of organic and inorganic fertilizers
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Table 3. Intensity distribution in the CPMAS 13C-NMR spectra of HA and FA under different ratios of organic and inorganic fertilizers
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