Having been treated with nitrogen or chemically combined with nitrogen; enriched or impregnated with nitrogen compounds.
Past participle of azotise (British spelling). Developed in 19th-century chemistry and agriculture when scientists realized they could deliberately add nitrogen to soils and organic materials.
When soil is azotised, it becomes more fertile—this is the basis of modern fertilizer chemistry and crop rotation, practices that transformed agriculture from subsistence to abundance.
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