They found that underutilized human and livestock waste could substitute 27% of current fertilizer use in China, 26% in the US, and 47% in India.
By Emma Bryce
January 10, 2025

Animal and human effluent is loaded with agricultural gold: tons upon tons of phosphorus, potassium and nitrogen, critical nutrients for the world’s crops. In fact the abundant waste is itself so abundant with nutrients, a new study finds, that it could replace existing fertilizer use on farms.
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