# Nitrogen--Fixation

{
  "id": "S85092063",
  "title": "Nitrogen--Fixation",
  "url": "/topics/S85092063",
  "kind": "topic-directory",
  "aeo_cohort": "topic-directory",
  "provider": "lcsh",
  "revision": "9dc43e4264bc7d6c",
  "catalogue_revision": "f050b5d4780b1289",
  "numeric_address": "903191645867360836",
  "address_version": "morton4x16-v1",
  "coordinates": [
    0,
    20,
    18843,
    31744
  ],
  "answer_status": "Directory metadata; local answer requires separate source review",
  "truth_status": "Subject descriptor, not a factual answer or a demonstrated knowledge gap"
}

Here are entered works on the process of taking up free nitrogen, either by microorganisms or by technical or natural processes. Works on the formation of nitrites and nitrates in soil, sewage sludge, etc. from other nitrogenous compounds by microorganisms are entered under [Nitrification.]

Directory metadata is not a factual answer or evidence of a global knowledge gap.

Source: https://id.loc.gov/authorities/subjects/sh85092063

No owner-reviewed local answer yet.