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. 2016 Aug 15;7:1290. doi: 10.3389/fmicb.2016.01290

FIGURE 1.

FIGURE 1

Effects of different additive concentrations of compound liquid amino acid (CLAA) added to matured chicken (A, C, E, and G) and pig manure (B, D, F, and H) on the cell density of plant growth-promoting rhizobacteria (PGPR) strain SQR9 and pH value during solid-state fermentation (SSF) with or without pre-compost. (A and B): cell density of SQR9 without pre-compost; (C and D): variation of pH value during pre-compost; (E and F): cell density of SQR9 with pre-compost for 6 days; (G and H): cell density of SQR9 with different initial pH value for inoculation after pre-compost for different times. CMCK, CM0.05, CM0.1, CM0.2, CM0.3, and CM0.4: addition of 0, 0.05, 0.1, 0.2, 0.3, and 0.4 ml/g of CLAA in matured chicken manure (CM), respectively; PMCK, PM0.15, PM0.2, PM0.25, and PM0.3: addition of 0, 0.15, 0.2, 0.25, and 0.3 ml/g of CLAA in matured pig manure (PM), respectively; CMP0, CMP2, CMP4, and CMP6: 0, 2, 4, and 6 days for pre-compost in matured chicken manure (CM), respectively; PMP0, PMP2. PMP4, and PMP6: 0, 2, 4, and 6 days for pre-compost in matured pig manure (PM).