Skip to main content
Soybean field in the morning with plants in rows.Cornfield in the early morning with corn plants in rows.Pile of ripe fresh potatoes on the ground in the field.John Deere combine cutting alfalfa in Door County, WI in August.

Agronomy Amendments

SOIL AGRONOMY SOLUTIONS FOR A RICH HARVEST

Minerals like limestone and gypsum amend soil structure while balancing acidity to increase crop nutritional quality and enhance growth. Whether your soil is heavy, sandy, acidic or pH neutral, we provide a soil agronomy solution to increase nutrient availability and balance soil pH for a healthy harvest season after season.  

GLC Minerals manufactures calcium-and magnesium-based soil amendments for bulk broadcast application in the Midwest. Our products offer consistent particle size distribution to deliver fast acting soil nutrition, unlike pelletized soil enhancers which requires dissolution to activate.

TypeBest SoilBest CropBenefit
UltraCalHigh-Calcium CarbonateSoil requiring pH adjustment
without introducing elemental
magnesium
Alfalfa, corn, soybeans,
corn silages and grains
Fast-acting neutralizer,
cost-effective
UltraCal™ 75/25Mineral formulations of
High-Calcium Limestone
with naturally mined
Gypsum
Heavy soils that are in need of
pH and soil structure adjustment
as well as sandy or lighter soils
in need of minerals
Potatoes, corn,
soybeans, vegetables
and alfalfa
Fast-acting dual
mineral amendment for
increasing soil fertility
UltraCal™ 50/50Mineral formulations of
High-Calcium Limestone
with naturally mined
Gypsum
Heavy soils that are in need of
pH and soil structure adjustment
as well as sandy or lighter soils
in need of minerals
Potatoes, corn,
soybeans, vegetables
and alfalfa
Fast-acting dual
mineral amendment for
increasing soil fertility
MegaSol™Naturally mined GypsumHeavy soils that are high in
magnesium, that needs improved
soil structure, sulfur and calcium
Potatoes, corn, soybeans,
vegetables, and alfalfa
pH neutral,
season-long release,
cost-effective
UltraMag™Naturally mined Dolomitic LimeAcidic soil lacking
magnesium
Corn, alfalfa
and vegetables
Neutralizer with
added magnesium for
deficient soils

Soil Enhancement Recommended by Agronomists for Higher Yields

Heavy soil impedes proper potato growth while sandy soil lacks adequate structure for corn crops. Calcium and sulfur deficient soil lacks necessary nutrients that crops need to thrive. Soil amendments correct these common issues for greater yields.

Schedule a virtual appointment with a GLC Minerals Agronomy Specialist

Soil Amendment Application

Wisconsin’s unique underlying soils drive demand for soil amendments. GLC Minerals understands the science of soil and crop management, and we also know that today more than ever, cost-effective agronomy solutions are paramount to every agricultural operation.

Soil structure and acidity can change from season to season. Our team of mineral experts can help determine the right soil conditioner or amendment based on your crop rotation and the results of your most recent soil test.  

Have your product delivered and applied to your field by our experienced spreaders at GLC. Our logistics team works with you to ensure your product is delivered on time directly to your field. In select markets, GLC Minerals has teamed up with independent applicators to help you apply your product or, you can apply with your own equipment.

Connect with Our Soil Agronomy Team