Nitrogen fixation

Urban Farm DB summary

This Wikipedia article on nitrogen fixation (the chemical process converting inert nitrogen gas into biologically usable nitrogen compounds) states that, as one legume example, nitrogen fixation by red clover can range from 50 to 200 lb/acre (56 to 224 kg/ha). It states the marine cyanobacterium Trichodesmium is thought to account for 'almost half' of nitrogen fixation in marine systems globally, and that the amount of nitrogen fixed in the ocean is at least as much as on land. It also credits the spread of Haber-process nitrogen fertilizer with helping expand the human population from about 2 billion in the early 20th century to over 8 billion today.

Only numbers and their conditions are stored, as structured data — never the source's own sentences. Metric and condition names stay in English, as coded.

• 56–224 kg_per_ha

  nitrogen fixation rate(red clover)

  Crop
• almost half of marine fixation

  marine nitrogen fixation share(trichodesmium)

  Biodiversity

  region

  Global oceans

• 2,000,000,000–8,000,000,000 people↑ Increase

  population supported(haber process nitrogen fertilizer)

  SocialControl: early 20th century vs present

  region

  Global