‘Grassroots action’ in livestock feeding to help curb global climate change

CGIAR Research Program on Livestock and Fish

In a series of papers, scientists in the Livestock and Fish research program offer new evidence that a potent chemical mechanism operating in the roots of a tropical grass used for livestock feed has enormous potential to reduce greenhouse gas emissions.

Referred to as “biological nitrification inhibition” or BNI, the mechanism markedly reduces the conversion of nitrogen applied to soil as fertilizer into nitrous oxide, according to papers prepared for the 22nd International Grasslands Congress. Nitrous oxide is the most powerful and aggressive greenhouse gas, with a global warming potential 300 times that of carbon dioxide.

“Nitrous oxide makes up about 38 percent of all greenhouse gas emissions in agriculture, which accounts for almost a third of total emissions worldwide,” said Michael Peters, who leads research on forages at the Colombia-based International Center for Tropical Agriculture (CIAT), a member of the CGIAR Consortium. “BNI offers what could be agriculture’s best…

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