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| Note: Ca2+-calcium ion, K1+-potassium ion, Mg2+-magnesium ion, H+-hydrogen ion, H2SO4-sulphuric acid, HNo3-nitric acid; Black arrow-precipitation derived nutrients, Red arrow-rock derived nutrients Source: University of California (www.info.ucr.edu/cgi_bin/display.cgi) as viewed on July 22, 2002 |