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Except for a few species of cyanobacteria capable of N 2 fixation nitrates are the most abundant source of nitrogen for primary producers in the sea. Biological nitrogen fixation and denitrification which refers here to all processes that convert reactive forms of nitrogen to molecular nitrogen. The Nitrogen Cycle In 2022 Nitrogen Cycle Nitrogen Cycling Explain the relationship shown in the graph between ligninN and mass remaining for each site. . Nitrogen fixation and growth will be reduced under cool and shady conditions Cook et al 2005. Other inorganic salts of N also available for phytoplankton are nitrites and ammonium the latter the preferred source since cellular nitrogen is mostly in the same oxidation state III in the amine -NH 2 groups of proteins. Adding phosphorus may help to increase yields Cook et al 2005 but first a soil test should be taken to determine the need for any soil. Juncea drilled at a heavy rate ...
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