Moldboard plowing effects on soil aggregation and soil organic matter quality assessed by 13C CPMAS NMR and biochemical analyses
نویسندگان
چکیده
منابع مشابه
Elemental quantitation of natural organic matter by CPMAS 13C NMR spectroscopy.
Cross-polarized magic-angle-spinning NMR (CPMAS-NMR) techniques are assumed to be only semi-quantitative in the assessment of carbon distribution in humic substances or natural organic matter, due to a number of interferences such as spinning side bands (SSB) in spectra, paramagnetic species in samples, and low or remote protonation of aromatic carbons. Fast rotor spin rates or direct polarizat...
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ژورنال
عنوان ژورنال: Agriculture, Ecosystems & Environment
سال: 2013
ISSN: 0167-8809
DOI: 10.1016/j.agee.2013.05.025