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Related to nitrification: Nitrifying bacteria, nitrogen cycle


tr.v. ni·tri·fied, ni·tri·fy·ing, ni·tri·fies
1. To oxidize (an ammonia compound) into a nitrite or (a nitrite) into a nitrate, especially by the action of nitrifying bacteria.
2. To treat or combine with nitrogen or compounds containing nitrogen.

ni′tri·fi·ca′tion (-fĭ-kā′shən) n.
ni′tri·fi′er n.


1. (Biochemistry) the oxidation of the ammonium compounds in dead organic material into nitrites and nitrates by soil nitrobacteria, making nitrogen available to plants. See also nitrogen cycle
2. (Chemistry)
a. the addition of a nitro group to an organic compound
b. the substitution of a nitro group for another group in an organic compound


The process by which bacteria in soil oxidize ammonia and form nitrates and nitrites. Because the nitrates and nitrites can be absorbed by the roots of green plants, nitrification is an important step in the nitrogen cycle.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.nitrification - the chemical process in which a nitro group is added to an organic compound (or substituted for another group in an organic compound)
chemical action, chemical change, chemical process - (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved
2.nitrification - the oxidation of ammonium compounds in dead organic material into nitrates and nitrites by soil bacteria (making nitrogen available to plants)
plant life, flora, plant - (botany) a living organism lacking the power of locomotion
oxidation, oxidisation, oxidization - the process of oxidizing; the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reduction


[ˌnaɪtrɪfɪˈkeɪʃn] nnitrificazione f
References in periodicals archive ?
He prayed the court to set aside the impugned nitrification of the interior ministry and allow his organizations to serve the people.
Contract notice: Purchase of tertiary nitrification system(s) for Anglian Water's (AW) Waste Water Treatment Works (WWTW).
Two-step nitrification is a central process in the nitrogen (N) cycle, during which ammonia is first oxidised to nitrite and subsequently to nitrate (Alawi et al.
Given the above, the faster the nitrification of the applied fertilizer, the greater its susceptibility to losses through leaching, because the N[O.
Urease and nitrification inhibitors are proposed as these intend to lessen nitrogen losses, reducing environmental impacts associated with N fertilizer application, thereby enhancing crop nitrogen use efficiency (NUE) and productivity.
This form is the main product generated during the biological nitrification of ammonia nitrogen, i.
In the VUNA project, we investigated three processes for urine treatment: struvite precipitation, a combination of nitrification and distillation, and electrolysis (Udert et al.
The treatment technology must include the oxidation of biodegradable carbon and nitrification, since organic carbon and ammonia nitrogen cause oxygen depletion in receiving water bodies [1], also ammonia is toxic to fish and other aquatic organism [2].
Nitrification Zone: This zone converts fish waste into the epic nutrients that create the massive growth that made aquaponics famous.
In the biological process, nitrogen removal is achieved through nitrification by autotrophs and denitrification by heterotrophs; i.
Bentonite clay decreases nitrogen loss by 10-15%, improves plant moisture content and enhances the biological activity and nitrification of the soil, thus increasing the number of microorganisms therein.
This study investigated the impact of allelopathic crops residue amendments and a nitrification inhibitor DMPP (3, 4- dimethylpyrazole Phosphate) on germination, growth, yield and nitrogen (N) use of wheat.