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Researchers calculate that alternative farming practices could turn staple crop production into a carbon sink and boost crop yields in China if adopted en masse
Environment
14 February 2023
Farmers harvesting straw in Anhui province, China TPG/Getty Images
China’s production of staple food crops such as wheat and corn could become a net carbon sink if farmers start widely applying biochar to soil.
Instead of returning raw biomass, like straw, to the soil at the end of the growing season, farmers could take it to pyrolysis plants, where the material is heated at a very high temperature in an oxygen-free chamber to create biochar, a charcoal-like solid rich in carbon.
Studies have shown that applying it to soils not only …
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