Iron fertilization cycle

Calcium Carbonates. Carbon Cycle. Hydrothermal Vent Deposits. Hydrothermal Vent Fluids, Chemistry of. Iron Fertilization. Nitrogen Cycle. River Inputs. Stable Carbon Isotope Variations in the Ocean. 

Carbon Cycle. Iron Fertilization. Nitrogen Cycie. Transition Metais and Heavy Metai Speciation. 

Iron Fertilization of the Oceans. The intentional introduction of iron into the upper layers of certain areas of the ocean to encourage phytoplankton blooms is a form of CDR. The concept rehes on the fact that increasing certain nutrients—such as iron— in nutrient-poor areas stimulates phytoplankton growth. Carbon dioxide is absorbed from the surface of the ocean during the processes of photosynthesis when the phytoplankton, marine animals, and plankton die and sink in the natural cycle, that carbon is removed from the atmosphere and sequestered in the ocean s depths. 

Reduced food intake and efficiency of food use, altered iron metabolism, clinical signs of copper deficiency. Onset of puberty delayed 10 weeks, decreased conception rate (fertility 12-33% vs. 57-80% in controls), disrupted estrus cycle (67% were anestrus vs. 7% in controls), and other signs consistent with decreased releases of luteinizing hormones associated with altered ovarian secretion (3, 4) Growth and fertilization normal liver copper 10 mg/kg DW only 16% of embryos developed normally (2)... 

Phillippo, M., W.R. Humpheries, T. Atkinson, G.D. Henderson, and P.H. Garthwaite. 1987a. The effect of dietary molybdenum and iron on copper status, puberty, fertility and oestrous cycles in cattle. Jour. Agric. Sci. (Cambridge) 109 321-326. 

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