• Spectroscopy and Spectral Analysis
  • Vol. 41, Issue 10, 3092 (2021)
Di SUN*, Meng-ting LI1;, Mei-rui MU1;, Run ZHAO1; *;, and Ke-qiang ZHANG1; *;
Author Affiliations
  • 1. Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
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    DOI: 10.3964/j.issn.1000-0593(2021)10-3092-07 Cite this Article
    Di SUN, Meng-ting LI, Mei-rui MU, Run ZHAO, Ke-qiang ZHANG. Rapid Determination of Nitrogen and Phosphorus in Dairy Farm Slurry Via Near-Mid Infrared Fusion Spectroscopy Technology[J]. Spectroscopy and Spectral Analysis, 2021, 41(10): 3092 Copy Citation Text show less
    Flow chart of slurry movement
    Fig. 1. Flow chart of slurry movement
    Distribution of dairy farms and sampling amountsNote: Black dots in the map represent 27 dairy farms
    Fig. 2. Distribution of dairy farms and sampling amounts
    Note: Black dots in the map represent 27 dairy farms
    Near infrared spectra (a) and mid infrared spectra (b) after normalization treatment
    Fig. 3. Near infrared spectra (a) and mid infrared spectra (b) after normalization treatment
    Prediction results of the slurry TN model
    Fig. 4. Prediction results of the slurry TN model
    Prediction results of the slurry TP model
    Fig. 5. Prediction results of the slurry TP model
    指标浓度范围/(mg·L-1)均值/(mg·L-1)
    TN80.435~6 768.2902 106.708
    TP9.163~188.675100.590
    Table 1. Measurement results of the nitrogen and phosphorus in slurry samples
    技术指标方法波段区间/cm-1因子数RMSEC/
    (mg·L-1)
    RMSECV/
    (mg·L-1)
    NIRTNPLS12 000~4 00011289.808367.684
    IPLS6 666~5 3345381.675410.482
    SIPLS10 930~10 400, 9 330~8 798, 7 194~6 662, 5 594~5 06410290.842363.902
    TPPLS12 000~4 000815.71618.009
    IPLS10 802~9 762, 9 122~8 162616.46417.828
    SIPLS10 400~9 600, 7 998~7 200, 4 798~4 000616.00317.044
    MIRTNPLS4 000~65014217.394333.226
    IPLS3 170~2 834, 1 658~98613230.29319.044
    SIPLS4 000~3 778, 3 104~2 882, 1 536~1 0949259.283288.059
    TPPLS4 000~650529.01731.955
    IPLS3 170~2 834, 1 658~986528.62530.937
    SIPLS2 656~2 434, 1 536~1 316, 1 092~872230.35230.766
    NIR plus MIRTNPLS12 000~65014229.994335.001
    IPLS9 168~4 056, 2 922~2 354, 1 786~1 21815187.967297.771
    SIPLS12 000~11 240, 2 916~1 406, 4 426~3 6749240.972278.692
    TPPLS12 000~6501017.27321.944
    IPLS10 870~9 516, 9 288~5 208, 2 928~2 702, 1 788~878818.21020.904
    SIPLS12 000~11 240, 8 968~8 212, 6 694~5 940, 2 160~1 4061016.67920.400
    Table 2. Comparison of PLS, IPLS and SIPLS calibration models for the nitrogen and phosphorus in the slurry
    Di SUN, Meng-ting LI, Mei-rui MU, Run ZHAO, Ke-qiang ZHANG. Rapid Determination of Nitrogen and Phosphorus in Dairy Farm Slurry Via Near-Mid Infrared Fusion Spectroscopy Technology[J]. Spectroscopy and Spectral Analysis, 2021, 41(10): 3092
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