Chemical and spectroscopic characteristics of humic acid from a clay loam soil in Ontario after 52 years of consistent fertilization and crop rotation

Long-term fertilization and crop rotation can influence both organic C sequestration as well as the C composition of soils and the more resistant organic C compounds contained in humic acid (HA). This study examined the effects of fertilization and cropping type (monoculture corn (MC) and Kentucky b...

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Veröffentlicht in:	Pedosphere 2021-02, Vol.31 (1), p.204-213
Hauptverfasser:	ZHAO, Nan, YANG, Xixiang, HUANG, Guocheng, LÜ, Yizhong, ZHANG, Jing, FAN, Yuanyuan, DRURY, Craig F., YANG, Xueming
Format:	Artikel
Sprache:	eng
Schlagworte:	Acidic soils Acids Agricultural practices Alfalfa Carbohydrates Chemical composition Clay loam Clay soils Corn Crop management Crop rotation Crops Electron paramagnetic resonance Electron spin resonance Fertilization Free radicals Humic acids humification process Infrared analysis Infrared spectroscopy Kentucky bluegrass sod Loam soils molecular composition Monoculture NMR Nuclear magnetic resonance Organic soils Phenolic compounds Phenols Soil analysis soil organic C Soils Spectroscopic analysis Spectrum analysis
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