Structure collapses
Arid-west soils run low in organic matter. Clay smears when wet and sets hard when dry. Roots hit a pan. Water sits on top or runs off. Tilth is the first thing to go.
Soil decline
What failing ground needs back.
Compacted, salt-affected, mineral-poor soils in the arid West do not recover on nitrogen alone. Utah Seabed documents a Lake Bonneville lacustrine bed — calcium, magnesium, sulfur, and traces — put to work as an amendment on living ground.
The problem
Soil decline is physical, chemical, and extractive.
Water and salts
Irrigation without drainage concentrates salts and carbonates. Sodium disperses clay. Calcium and gypsum in the receiving soil help flocculate it — if they are actually there.
Minerals leave with the crop
Each harvest exports calcium, magnesium, sulfur, and traces. Synthetic NPK does not put those back. The Sevier bed is a documented calcareous sandy/silty clay, not a complete fertilizer program.
The bed
A calcareous sandy/silty clay, sampled on the playa.
Kohler (2023) and Beard sampled the Antelope placers with a soil auger — a few feet of Lake Bonneville sediment, not a hard-rock mine. Stukenholtz lab averages below. Results on working ground still depend on rate, receiving soil, and management.
| Analyte | Kohler, Antelope | Beard, North #2 |
|---|---|---|
| Calcium | 14.318% | 17.798% |
| pH | 8.76 | 8.9 |
| Magnesium | 1.412% | 1.240% |
| Sulfur | 0.556% | 0.455% |
| K2O | 0.1276% | 0.185% |
| P2O5 | 0.06% | 0.033% |
| Iron | 7,898 ppm | 7,877 ppm |
We do not claim medical or neurological outcomes from those traces. This is a mineral amendment for soil, not a food or supplement claim.
On the ground
Product films and field clips.
GEOSerum and flakes are downstream product examples. The auger clips are the Sevier bed itself. None of these are a one-rate use recommendation.
GEOSerum
A one-minute product film for the GEOSerum foliar line, July 2023. A downstream product example — not a survey of the Sevier bed.
The GEOSerum technology
How the GEOSerum line is described. Product film, July 2023.
Soil-amendment flakes
Close look at flaked amendment, July 2023.
Soil-auger sampling
Hand-auger sampling of the lacustrine bed, Millard County, August 2026. A surface deposit — not a hard-rock mine.
Auger hole in the bed
The open auger hole in the lacustrine surface, Millard County, August 2026. A few feet of sandy/silty clay — not a deep hard-rock mine.
Garden kit
Garden sample kit.
Step-by-step instruction for the garden sample kit: reduce water, increase yield, and drive nutrients into soil.