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Fig. 1. Stability of pH in Lillis soil suspensions after titration with HCl or NaOH (Days 13 to 1.2) and separation and enclosure into serum bottles followed by addition of 20 mM Good Buffers (Day 0). Symbols represent live (solid and hatched), heat-killed (AC, open square), or antibiotic (Chl, open triangle) samples.
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