Ultra Mag lime

Bulk 17-24 ton loads available please call 920-255-6388

Available In Smaller Quantities Aswell.

Benefits of UltraMag: Greater Yields + Greater ROI 


GLC Minerals’ UltraMag™ is a custom-processed dolomitic aglime from a natural source. This naturally occurring mineral is ground to a fine powder to make it more effective than dolomitic aglime. It also has a higher acid neutralizing potential than calcitic lime (thus giving it a higher Calcium Carbonate Equivalent). In addition, the soil reaction rate of dolomitic limestone is known to be 2.5 to 4.5 times slower than calcitic lime.

Because UltraMag is slower reacting than calcitic lime, UltraMag is the perfect choice to increase pH, protect humus and supply Mg on lighter soils like sandy loams, sandy soils, forest soils and pastures. GLC Minerals’ UltraMag is the perfect choice to efficiently and effectively increase soil pH in the central sands of Wisconsin and protect crops from herbicide injury that is often associated with over-liming when using calcitic aglime.


Because UltraMag™ is a bulk powder product, it’s more cost effective than pelletized products. The pelletizing process adds considerable cost to the product without any improved effectiveness. In fact, purchasing pelletized products may make soil correction cost prohibitive.

For optimum yields, effective liming material must raise the soil pH to a desired level. UltraMag custom processed lime from GLC Minerals does just that, with the smallest amount of material applied possible. In contrast, aglime must be applied farther in advance and at much higher rates per acre than UltraMag. In some cases, poor quality aglime may not increase soil pH to the desired level.

About Ultra Mag lime

Spee-Dee Shipping Notice

Spee-Dee shipping is far cheaper for our clients in Illinois, Iowa, Minnesota, North Dakota, South Dakota, and Wisconsin, as well as select cities and ZIP Codes in Michigan, Missouri, and Nebraska. Spee-Dee’s shipping integration only supports shipping on orders 150lbs and under. To use Spee-Dee shipping for your orders over 150lbs, please split your order into individual transactions! Thanks. Otherwise contact us for other shipping options (920) 255-6388.