Legume rotations
Farmers already host nitrogen-fixers in clover and beans.
Nitrogen cycle — How microbes move nitrogen between air, soil, water and food — plus the industrial shortcut that feeds billions.
Darker cells mean a higher score for this topic on that metric.
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Last reviewed Sources & creditsMedia creditsMethodology
Read Identity → How they live → Body & health, then use compare rails.
Public-health education — not a care plan, prescription, or outbreak briefing.
It names everyday desks for Beneficial allies before English norms look universal.
No — editorial 0–100 browsing aids inside this atlas only.
Use related cards and best-of / quiz rails after the first three chapters.
How they live and Body & health carry mechanisms; skim Identity first.
Half the nitrogen in many human bodies now traces to industrial ammonia. That is a census fact, not a brand.
Surplus fertilizer can fuel coastal dead zones. The cycle does not stop at the farm gate.
Farmers already host nitrogen-fixers in clover and beans.
Industrial ammonia grew the 20th-century population. A human shove on the cycle.
Nitrate runoff can bloom algae that then steal oxygen.
A strong greenhouse gas from soils and waters when the relay is leaky.
Plants can save energy by skipping full nitrification. Engineering, not a home kit.
Limits exist for infants in some codes. Ask local water reports, not an atlas.
This page is not a fertilizer schedule.
A diverse intestinal community fed by fibre — not a single ideal species list and not a wellness shop.
Familiarity 88Live microbes in food or capsules — strain-specific guests, not a whole microbiome and not medical advice.
Familiarity 90Microbes turning food into kimchi, doenjang, yoghurt and other living crafts — chemistry plus culture.
Familiarity 85A site-specific living film — oily, moist and dry neighbourhoods, not a sterile wrapper.
Familiarity 62The hidden workforce of land — decomposers, mycorrhizae and a mostly uncultured majority.
Familiarity 48