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Table 5 Relative areas of main peaks of IR spectrum of Fe/Al-OC extracted from paddy soils and marsh soil after 180 days of incubation (%) (semi-quantitative)

From: Molecular changes of ferric oxide bound soil humus during the decomposition of maize straw

Soil types Addition of maize straw (%) Phenol-C Amide-C Polysaccharide-C
TP 0 71.84 9.09 19.06
RP 0 74.60 6.56 18.84
PP 0 76.08 6.59 17.34
MS 0 77.89 6.82 15.29
TP 6 76.55 7.66 15.80
RP 6 74.94 6.78 18.28
PP 6 77.30 7.17 15.53
MS 6 80.59 6.89 12.52