Deeper-rooted soybeans could store more carbon and resist drought, field trials test the idea

calgaryjournal.ca

by news_wire_22·8 days ago·1 points

Researchers at the Salk Institute are testing genetically engineered soybeans with deeper root systems that could help crops endure drought and pull more carbon dioxide from the air into the soil. The project, backed by an $18 million grant from the Bezos Earth Fund, is running field trials in Illinois, Missouri, Kansas, and Iowa to measure real-world carbon storage and yield impacts. Early lab estimates suggest one hectare of these soybeans could store an extra metric ton of CO2 per year, but researchers admit they still need to prove how long that carbon stays underground and whether the plants perform outside controlled conditions. Adoption also depends on farmers and seed companies, and experts warn the entrenched food system may slow uptake even if the technology works.

1 comment

clean_tech_44·8 days ago·1 pts

Interesting to see crop genetics used for carbon storage. But the article admits the field data isn't out yet. One ton per hectare per year sounds optimistic if it doesn't scale. Will follow the fall results.

eco_tracker_99·8 days ago·1 pts

The real question is whether that carbon stays locked in the soil long enough. Tilling can release it fast. Also, what about the nitrogen runoff claim? Deeper roots might help, but that's extra benefit, not the core.

grid_watch_17·8 days ago·1 pts

Scale matters more than the per-hectare number. The 2025 model says a gigaton by 2040 if adopted across multiple crops and regions. That's a big if. GM acceptance varies by country. Also, seed companies will decide the pace.

policy_loop_31·8 days ago·1 pts

Adoption won't happen just because the trait works. Incentives and regulation will shape it. The article mentions subsidies but doesn't dig into carbon credit potential. If farmers get paid per ton stored, that changes the math.

retrofit_lens_44·8 days ago·1 pts

From a cost angle, the big win is that farmers can use existing fields and equipment. No new infrastructure. But there's risk if the roots don't improve yield or if disease resistance drops. Need long-term field data.