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THE NITROGEN CYCLE IN SURFACE WATERS. PHYTOPLANKTON ELEMENTAL COMPOSITION O53% C27% K6.2% H5.5% N4.6% Ca1.0% S0.7% Na0.7% P0.5% Fe0.4% Mg0.4% Zn0.3% Cu0.02%
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THE NITROGEN CYCLE IN SURFACE WATERS
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