The Subterra Green's Next Frontier: Expanding Soil Nutrient Detection
- S4 Blogger
- 6 hours ago
- 2 min read
The Subterra Green was built on a simple but powerful idea: farmers and agronomists deserve real-time, in-field soil data — not lab results that arrive days later when decisions have already been made.
That vision started with soil organic carbon, water content, and bulk density. Today, we're sharing where it's heading next.
What the Technology Makes Possible
At the heart of the Subterra Green is near-infrared spectroscopy — a sensing approach capable of detecting hundreds of distinct chemical signatures within a soil sample. The same technology that maps carbon in real time holds real potential for a much broader picture of soil health.
We're actively developing that potential.
The Nutrient Roadmap
Our R&D team is working to expand the Subterra Green's precision agriculture soil mapping capabilities to include the nutrients and soil properties that drive the most critical agronomic decisions:
Macronutrients (nearer-term focus): Phosphorus (P), Potassium (K), Magnesium (Mg), Calcium (Ca), and Sulfur (S)
Key soil properties: pH and Cation Exchange Capacity (CEC)
Micronutrients (longer-term horizon): Boron (B), Copper (Cu), Aluminum (Al), and Sodium (Na)
This roadmap reflects our ambition, but also our commitment to scientific rigor. Spectral detectability varies by nutrient type and soil region. Not every analyte behaves the same way in a spectrometer, and building models that perform reliably across diverse geographies takes time and validation work. We're doing that work carefully.
Why This Matters
True in-situ soil testing, meaning on-the-go, in-field detection without shipping samples to a lab, has long been an unmet need in precision agriculture. If we can close that gap for macronutrients and soil properties at scale, the implications for variable rate application, input efficiency, and farm profitability are substantial.
The foundation is strong, and we're excited about what's ahead.
Want to follow our progress?