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Ideas & News
Welcome to the S4 Mobile Laboratories blog, where we invite you on a journey of discovery, innovation, and environmental awareness.
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S4 Mobile Laboratories Expands the Subterra Platform with the New Subterra Insight Software with FieldAlytics Compatibility
S4 Mobile Laboratories is announcing our expanded Subterra offerings combining the Subterra Green hardware with Subterra Insight cloud-based software to help farmers, agronomists and agricultural professionals store, visualize, analyze and export data to work with their agronomic operations.
S4 Blogger
Oct 53 min read


S4 Mobile Laboratories Expands International Soil-Intelligence Collaboration Through PHENET
S4 Mobile Laboratories is building international momentum for its work in advanced soil measurement through PHENET, a European collaboration focused on making next-generation phenotyping and environmental measurement technologies more accessible to European research infrastructure and agriculture.
S4 Blogger
Sep 262 min read


National Farm Day: Celebrating the Knowledge That Powers Modern Agriculture
Through mobile testing capabilities and the Subterra Green platform, S4 helps bring advanced soil analysis closer to the field.
S4 Blogger
Sep 262 min read


From Field Measurement to Mapped Insight: How the Subterra Green Supports a Faster Soil Data Workflow
S4 Mobile Laboratories developed the Subterra Green to create a more connected field-to-insight workflow. The mobile, in-situ soil spectroscopy platform helps teams collect precision, georeferenced soil data across your fields, then view and analyze mapped results through Subterra Insight™. This cuts costs, saves time, and increases the precision of your data helping you create more informed agronomic decisions.
S4 Blogger
Aug 293 min read


Why Depth-Resolved Soil Data Matters for Field-Scale Decisions
The Subterra Green is S4 Mobile Laboratories’ mobile, in-situ soil spectroscopy platform for agricultural and environmental applications. It brings in-situ measurement, mapping, and analysis directly to the field.
S4 Blogger
Aug 293 min read


Why Depth and Density Break Down in Systems That Never Stop
Irrigated specialty crops don't run on a seasonal clock, and neither do the input costs tied to managing them. Farm-level fertilizer and fuel costs have climbed 20% to 40% depending on the operation and input mix over the past several months, driven by nitrogen and diesel price spikes tied to global supply disruption.¹ For high-value permanent crops like almonds, pistachios, and citrus, where a single soil management misstep carries real economic consequence — that cost press
S4 Blogger
Jul 262 min read


The Measurement Gap Carbon Programs Can't Verify Their Way Out Of
Soil carbon MRV has a data quality problem that's becoming harder to paper over. Industry analysis of the MRV landscape points directly to "measurement theater" - protocols that satisfy a checklist without producing data dense or deep enough to support the claims built on top of it.
S4 Blogger
Jul 262 min read


The Real Cost Pressure in Soil Sampling and Carbon MRV
Every capital or program budget request needs a number that survives scrutiny. For soil sampling and carbon MRV programs specifically, that number has gotten harder to justify.
S4 Blogger
Jul 262 min read


S4 Mobile Laboratories Supports the Search for Unmarked Burials at Former Indian Residential School Sites
Canada’s Globe and Mail recently published a powerful piece examining the ongoing search at Tk'emlúps te Secwépemc. It is a sobering reminder of why building confidence through multiple, complementary methods is so critical. For families and nations waiting for answers, certainty is not just a technical goal, it is a critical mission for healing.
S4 Blogger
May 272 min read


S4 Mobile Laboratories Earns Second Consecutive Morgan Startup Grant, Advancing Midwest Expansion of the Subterra Green
S4 Mobile Laboratories is pleased to announce it has been named a Morgan Startup Grant recipient for the second consecutive year
S4 Blogger
May 82 min read


The Agronomic Case for In-Situ Soil Nutrient Mapping in Precision Agriculture
Every agronomist knows the frustration: you pull samples from a field, send them to a lab, wait days for results, and by the time the report arrives, the planting window has narrowed, or passed entirely. Traditional soil testing was designed for a different era of farming. Precision agriculture demands something better. The Problem with Point-in-Time Sampling Conventional soil testing captures a snapshot from a handful of locations, averaged across acres that are rarely unifo
S4 Blogger
Apr 262 min read


The Subterra Green's Next Frontier: Expanding Soil Nutrient Detection
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
S4 Blogger
Apr 262 min read


Why Horizontal Data Isn't Enough: A Farmer's Case for Soil Health Depth Mapping
High-resolution depth mapping fills the gap that surface tools leave open. When you can see soil organic carbon, water content, and bulk density continuously from the surface to 90 cm — in real time, in the field — the picture of what's driving variability becomes considerably clearer.
S4 Blogger
Mar 282 min read


From Soil Samples to Soil Systems: Modernizing Carbon Measurement for Conservation Tillage
At the Conservation Tillage & Technology Conference (CTTC), S4’s Linda Barrett will explore how this transition from samples to systems looks in practice. Her session, “Seeing Beneath the Surface: Digital 3D Maps of Soil Organic Carbon” on March 11 will show how S4's Subterra Green digital 3D mapping can support more precise AG decisions in conservation tillage and soil health strategies.
S4 Blogger
Feb 242 min read


Turning Grant Support into Lasting Impact: How the Morgan Startup Grant Propelled S4 Mobile Laboratories’ Subterra Model H Forward
S4 Laboratories was honored to be named a recipient of the prestigious Morgan Startup Grant, made possible by the Burton D. Morgan Foundation in partnership with Bounce Innovation Hub. This grant program is uniquely designed to help early-stage companies transform bright ideas into tangible innovations that create both economic and societal value. For S4, the funding has provided vital resources to advance our technology platform and expand its applications into areas of real
S4 Blogger
Sep 3, 20252 min read


Walking Together in Truth: Dialogues with askîhk Research Services and S4 Mobile Laboratories
Angela Burant, co-founder and director at askîhk Research Services, for a candid conversation about her team’s mission and how S4’s technology has become an integral part of their toolkit.
S4 Blogger
Aug 22, 20254 min read


Beyond Yield: How Soil Carbon Measurement Future-Proofs Your Farm’s Bottom Line
Recent advances in visible and near-infrared (vis-NIR) spectroscopy have revolutionized our capacity to measure SOC in situ. Peer-reviewed studies consistently demonstrate that vis-NIR instruments, when properly calibrated, deliver rapid, reliable, and spatially resolved data on SOC and bulk density. This technology enables dense sampling grids and three-dimensional mapping—critical for both baseline establishment and ongoing verification demanded by carbon programs.
S4 Blogger
Jul 24, 20252 min read


Revolutionizing Unmarked Grave Detection: Subterra Grey vs. Traditional GPR
Recent advances in soil spectroscopy like S4 Mobile Laboratories’ Subterra Grey are transforming the landscape of subsurface investigations.
S4 Blogger
Jul 17, 20252 min read


S4 Mobile Laboratories Receives Morgan Startup Grant to Advance Soil Technology Innovation
S4 Mobile Laboratories, a leader in mobile soil analysis solutions, has been awarded a $2,000 Morgan Startup Grant, introduced by Bounce Innovation Hub and funded by the Burton D. Morgan Foundation.
S4 Blogger
Apr 17, 20252 min read


The Bounce Effect: How Akron’s Innovation Hub Helped S4 Mobile Laboratories Scale
Born out of a research project at the University of Akron, S4 Mobile Laboratories has grown into a promising tech company
S4 Blogger
Mar 31, 20254 min read
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