Summary
This 2024 field study in a cereal-growing Mollisol investigates how tillage intensity alters the distribution of crop residue-derived carbon among soil particle-size fractions. By quantifying carbon allocation patterns under contrasting management regimes, the work elucidates mechanistic relationships between soil disturbance and organic matter stabilisation. The findings contribute to understanding carbon cycling dynamics in cereal systems and, as suggested by the study design, inform assessment of sequestration potential under different tillage practices.
UK applicability
Mollisols are not the predominant soil type in the UK, which limits direct agronomic transferability. However, the mechanistic insights into how tillage alters carbon distribution across soil fractions may have broader applicability to UK arable soils under comparable cereal rotations, particularly in relation to policy drivers around soil carbon sequestration and sustainable intensification.
Key measures
Carbon distribution across soil particle-size fractions; residue-derived carbon allocation; tillage intensity treatments
Outcomes reported
The study quantified how contrasting tillage regimes alter the distribution of crop residue-derived carbon across soil particle-size fractions (sand, silt, clay) in a Mollisol. It examined carbon allocation patterns and organic matter stabilisation mechanisms under different soil disturbance intensities.
Topic tags
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