Nitrification - nutrient cyclesammonia or ammonium salts, Ask an Expert

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Nitrification - Nutrient Cycles

Ammonia or ammonium salts, are converted into nitrate in a process termed nitrification to be useful to most autotrophic and heterotrophic organisms. This process occurs in warm moist soil with near neutral pH and takes place in two steps:

Ammonia salt or ammonia is oxidised and converted into nitrite by Nitrosomonas

2NH₃ + 3O₂ → 2NO^-₂ + 2H⁺ + 2H₂O 65 kcal/mole

Nitrite is further oxidised and converted into nitrate by Nitrobacter

2NO^-₂ → 2NO^-₃ 17Kcal/mole

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Category:- Biology
Reference No.:- M9518549

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