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. 2021 May 11;15(11):3148–3158. doi: 10.1038/s41396-021-00999-7

Fig. 3. Response of soil microbial C, N, and S stoichiometry to cysteine (Cys) and methionine (Met) addition.

Fig. 3

The microbial C, N, and S stoichiometry (% of total addition to microbial biomass)  after Cys and Met addition for 0.25 h (A), 1 h (B), 9 h (C), 24 h (D), and 96 h (E). NM, MM, and HM are zero, medium, and high application rates of farmyard manure (FYM), respectively. Data are normalised for C + N + S = 100%. Blue and pink arrows show convergence of the Cys and Met microbial transformation pathways in the soil. Despite their initial differences, the C:N:S stoichiometries of Cys and Met converged after 96 h.