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Fig. 2. Concentrations of inorganic (P-i), inorganic and enzymatically hydrolyzable organic P (P-i+e), and total P (P-t) in sequentially extracted 1 M HCl fractions of soils mixed with or without dairy manure. Maine unnamed soils without dairy slurry Day 0 (MC0) and with dairy slurry Day 0 (MD0) after a 150-d incubation (MC150 and MD150). Oregon Adkins soils without dairy slurry Day 0 (OC0) and with dairy slurry Day 0 (OD0) and after incubated 150 d (OC150 and OD150). Values are averages ± standard deviations (n = 4).
