Fig. 1: Carbon and nitrogen concentrations in various fractions of soil organic matter. | npj Biofilms and Microbiomes

Fig. 1: Carbon and nitrogen concentrations in various fractions of soil organic matter.

From: Soil microbial metabolism on carbon and nitrogen transformation links the crop-residue contribution to soil organic carbon

Fig. 1

The concentrations of carbon (a) and nitrogen (b) and residue-derived N (c) retained in the coarse particulate organic C (coarse-POC), fine POC (fine-POC) and mineral-associated organic C (MOC) fractions in soils amended without (control) and with maize and soybean residues after incubated at 25 °C for 250 days. Different letters above bars indicate a significant difference between treatments at p < 0.05 (one-way ANOVA). * and ** represent a significant difference analyzed by independent t test between treatments at p < 0.05 and p < 0.01, respectively. Error bars are the standard error of three replicates.

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