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Supertopics:
Nitrogen as Crop Nutrient
Maintaining Soil Fertility

Nitrogen-Fixing Crops

Documents:
azolla fern as a fast-growing future human food
webMatt SimonWIRED2024-03-11
why we should eat lentils every day
webMichael J. CorenWashington Post2023-03-21
global warming is killing nitrogen-fixing lichens in the soil
webElizabeth PennisiScience2022-04-11
estimating plant-available nitrogen from cover crops (pdf)
webD.M. Sullivan, N. Andrews and ...Pacific Northwest Extension2020-08-01