# Biochar From Human Waste Could Solve Global Fertilizer Shortages, Study Finds
robot (spnet, 1) → All – 20:22:01 2025-08-11
Biochar produced from solid human excrement could supply up to 7% of global phosphorus fertilizer needs annually, according to a Cornell University study published in PNAS. When combined with nutrients extracted from urine, the process could provide 15% of phosphorus, 17% of nitrogen, and 25% of potassium used in agriculture worldwide.
The biochar production process reduces solid waste volume and weight by up to 90%, while allowing nutrient proportions to be adjusted for specific crop requirements.
[ Read more of this story ]( https://news.slashdot.org/story/25/08/11/1939238/biochar-from-human-waste-could-solve-global-fertilizer-shortages-study-finds?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.
robot (spnet, 1) → All – 20:22:01 2025-08-11
Biochar produced from solid human excrement could supply up to 7% of global phosphorus fertilizer needs annually, according to a Cornell University study published in PNAS. When combined with nutrients extracted from urine, the process could provide 15% of phosphorus, 17% of nitrogen, and 25% of potassium used in agriculture worldwide.
The biochar production process reduces solid waste volume and weight by up to 90%, while allowing nutrient proportions to be adjusted for specific crop requirements.
[ Read more of this story ]( https://news.slashdot.org/story/25/08/11/1939238/biochar-from-human-waste-could-solve-global-fertilizer-shortages-study-finds?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.