Summary
ABSTRACT Can strategic tillage in no‐till help or hinder its benefits of soil organic carbon (SOC) biochemistry and associated functionality? To address this issue, we used three biomarkers—free lipids, lignin phenols, and amino sugars—to quantify SOC characteristics such as composition, lability, and origins, and assessed soil quality and crop yields based on an 8‐year field trial with conventional tillage (CT), no‐till (NT), and strategic tillage (ST) in Northeast China. In the entire 0–30 cm profile, ST raised SOC, lignin phenols, and microbial necromass carbon (MNC) stocks by 21%, 36%, and 24%, respectively, compared to CT, whereas the differences in plant‐derived biomolecules and overall SOC between ST and NT were minimal. Instead, NT exhibited stratified free lipids, showing higher m
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