Why do Oregon farms plant red clover every spring?
5 hours ago
- #sustainable-farming
- #nitrogen-fixation
- #soil-chemistry
- Red clover is a spring cover crop planted on Oregon farms to improve soil health.
- It appears red due to high cobalt content, which binds with oxygen, not because of typical plant pigments.
- Cobalt in clover has a high affinity for nitrogen, enabling the plant to extract nitrogen from the air (which is 78% nitrogen gas).
- Bacteria in the root nodules, enriched with cobalt, convert atmospheric nitrogen into a stored form in the roots.
- After a few months, farmers plow the clover back into the soil, providing nitrogen levels comparable to commercial fertilizers.
- This process offers a cost-effective, natural fertilizer, enhancing soil nutrients for subsequent crops and reducing the need for synthetic inputs.
- Planting red clover is part of sustainable farming cycles, improving soil health during fallow periods.