noun. the oxidation of ammonium compounds in dead organic material into nitrates and nitrites by soil bacteria (making nitrogen available to plants).
noun. the chemical process in which a nitro group is added to an organic compound (or substituted for another group in an organic compound).
- chemical process
- chemical action
Example sentences of the word nitrification
1. Noun, singular or mass
These bacteria make up the majority of the species found in most soils, and also play a vital role in nitrification.
Next, nitrification converts the ammonia into nitrite ions, which the plant roots absorb as nutrients.