Salk Institute's Deeper-Rooted Soybeans: Field Trials for Carbon Storage and Drought Tolerance

The Salk Institute is testing genetically engineered soybeans with deeper root systems that could help crops withstand drought and store more carbon underground. A $18 million grant from the Bezos Earth Fund supports field trials in Illinois, Missouri, Kansas, and Iowa to measure real-world carbon storage and yield impacts. Early lab estimates suggest one hectare could store an extra metric ton of CO2 per year, but field results are needed to confirm this and how long carbon stays buried. Adoption faces significant hurdles. Farmers are risk-averse, and the agricultural system is entrenched with seed companies, subsidies, and trade rules. While herbicide-resistant crops spread quickly, deeper-rooted varieties must prove benefits beyond climate claims, like drought tolerance and reduced fertilizer runoff. The article quotes UNDP's Andrew Bovarnik, who warns that innovation alone won't overcome systemic barriers. If field trials succeed, deeper-rooted crops could be planted using existing infrastructure, potentially removing up to a gigaton of CO2 annually by 2040. But that requires rapid adoption across major row crops and careful soil management. The science is promising, but the path from lab to farm is long and uncertain.