Figure
3. Comparisons of iron strip phosphorus (FeO-Pw) in RO and RO/Tap
runoff waters versus Olsen-P (Pi), water soluble soil-P (Pws),
and iron strip (FeO-Ps) soil phosphorus tests. Regressions do
not differ among RO and RO/Tap waters, except intercepts differ between
RO and RO/Tap runoff waters for Pi. All regressions are significant
(P = 0.05).
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