Spectroscopy and Spectral Analysis, Volume. 41, Issue 11, 3518(2021)
Fluorescence Spectrum Characteristics of Fulvic Acid in Black Soil Under Different Ratios of Organic-Inorganic Fertilizers Combined Application
Figures & Tables(7)
Fig. 1. Differences of SOC and FA contents in black soil after combined application of organic and inorganic fertilizers
Note: Lowercase letters represent significant difference (
Fig. 2. Three dimensional fluorescence components of soil FA in different treatments
Peak A: fulvic-acid-like in UV region; Peak C: fulvic-acid-like in visible region; Peak F: humic-acid-like;
Peak T: short wave tryptophan-like (protein-like); Peak T1: long wave tryptophan-like
Fig. 3. RDA of different treatments, fluorescence intensity and soil carbon content
Table 1. Basic chemical properties of soil
View tableView in ArticleTable 1. Basic chemical properties of soil
土壤层
次/cmpH 有机碳/
(g·kg-1)全氮/
(g·kg-1)碱解氮/
(mg·kg-1)全磷/
(g·kg-1)速效磷/
(mg·kg-1)全钾/
(g·kg-1)速效钾/
(mg·kg-1)0~20 6.36±0.02 17.42±1.05 1.81±0.03 129.12±10.59 1.69±0.10 51.26±2.69 18.92±0.34 202.2±21.74
Table 2. Basic chemical properties of organic fertilizer
View tableView in ArticleTable 2. Basic chemical properties of organic fertilizer
pH 全氮/
(g·kg-1)全磷/
(g·kg-1)全钾/
(g·kg-1)有机碳/
(g·kg-1)6.90±0.03 4.68±0.25 2.41±0.12 1.97±0.06 26.62±1.13
Table 3. Fluorescence spectrum indices of soil FA
View tableView in ArticleTable 3. Fluorescence spectrum indices of soil FA
处理 FI BIX HIX CK 1.63±0.04b 0.70±0.02a 2.04±0.28c NPK 1.65±0.04ab 0.72±0.03a 2.36±0.16b NPKM1 1.67±0.02ab 0.74±0.02a 2.51±0.29ab NPKM2 1.71±0.03a 0.75±0.05a 2.94±0.41a NPKM3 1.67±0.06ab 0.74±0.06a 2.58±0.31ab NPKM4 1.70±0.03ab 0.75±0.04a 2.78±0.51a
Table 4. Fluorescence intensity and relative percentage of soil FA fluorescence components
View tableView in ArticleTable 4. Fluorescence intensity and relative percentage of soil FA fluorescence components
处理 C1 (R.U.) C2 (R.U.) C3 (R.U.) C1+C2+C3 相对百分比/% C1 C2 C3 CK 1 656.87±181.18c 685.59±91.36c 527.13±59.03b 2 869.58±331.57c 57.74 23.89 18.37 NPK 2 082.61±37.51ab 874.87±79.68ab 573.75±50.47ab 3 531.23±167.66a 58.98 24.78 16.25 NPKM1 2 060.98±105.37ab 831.19±69.77b 603.27±82.66a 3 495.44±257.80a 58.96 23.78 17.26 NPKM2 2 127.42±124.08a 906.28±94.36a 535.28±283.05b 3 568.98±167.03a 59.61 25.39 15.00 NPKM3 1 884.82±105.92bc 704.97±199.71c 535.42±109.46b 3 125.21±415.09b 60.31 22.56 17.13 NPKM4 1 779.44±180.66c 727.67±167.62bc 490.93±24.85c 2 998.05±373.13b 59.35 24.27 16.38
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Yan LI, Yang BAI, Dan WEI, Wei WANG, Yu-mei LI, Hong XUE, Yu HU, Shan-shan CAI. Fluorescence Spectrum Characteristics of Fulvic Acid in Black Soil Under Different Ratios of Organic-Inorganic Fertilizers Combined Application[J]. Spectroscopy and Spectral Analysis, 2021, 41(11): 3518
Paper Information
Category: Orginal Article
Received: Dec. 7, 2020
Accepted: --
Published Online: Dec. 17, 2021
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