| LC control no. | sh 85092051 |
|---|---|
| LC classification | S651 S651.3 Agriculture |
| Topical heading | Nitrification |
| See also | Oxidation Denitrification Nitrifying bacteria |
| Scope note | Here are entered works on the formation of nitrites and nitrates in soil, sewage sludge, etc. from other nitrogenous compounds by microorganisms. Works on the uptake of free nitrogen, either by microorganisms or by technical or natural processes, are entered under Nitrogen--Fixation. |
| Subject example tracing | Note under Nitrogen--Fixation |
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