Three-decade long fertilization-induced soil organic carbon sequestration depends on edaphic characteristics in six typical croplands.

In particular, we found a highly significant percentage contribution of manure to CSE variance at GZL (4.9%, p -value < 0.05), suggesting the increasing importance of manure input in regulating SOC sequestration although it does not change the dominant impact exerted by soil on CSE (29.9%, p -value < 0.01).

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Two-way ANOVA showed marginally significant site effect on CSE ( p -value = 0.13) and the post hoc test showed CSE is lower at HH and ZZ than QY ( Fig. 2c ).

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