Deep-rooted soybeans could store more carbon and survive drought, Salk field trials aim to prove it

Researchers at the Salk Institute are field testing genetically edited soybeans with deeper root systems. The goal is to help the crop survive drought and store more carbon underground. The project, backed by an $18 million grant from the Bezos Earth Fund, is measuring how much extra carbon the roots actually hold and whether yields hold up on real farms. Salk estimates one hectare of these soybeans could store an additional metric ton of CO2 per year, but that number comes from lab work. Field trials in Illinois, Missouri, Kansas, and Iowa will test drought response and soil carbon using underground cameras and sensors. Initial results are expected this fall. Adoption is the bigger question. Getting the seeds to farmers at scale depends on seed companies, commodity buyers, subsidies, and clear evidence that the crop pays off. Even if the carbon math works, soil management and how the soybeans are used will determine the climate benefit.