Improves soil structure by enabling flocculation of the soil particles. Stimulates growth of soil microbes. Enhances overall plant health resulting in higher quality crops. Liming agent.

GSR Dormant Mix (orange label): Applied directly to the soil after harvest or plowdown, summer fallow. Available in 1lb or 5lb bags.

This product is used to correct deficiencies of available calcium in the soil.

Derived from limestone, we have separated the best from the rest.

Over-application of traditional agricultural limes can lead to the degradation of the soil’s physical structure caused mainly by excess magnesium, excess sulphur salts, and/or excess carbonates represented by a high soil pH. These soil health problems can be the result of improper soil amendment recommendations and/or applications. GSR Dormant Calcium works to correct the cause of the problem rather than continue to react to symptoms.

GSR Dormant calcium is an electrically available calcium, which has the potential to restore physical structure of the soil. Compaction, high salts or alkali, and low electrical conductivity can potentially all be remediated with the proper use of GSR Dormant Calcium. Because it is AVAILABLE calcium, you get a powerhouse of flocculating potential in each GRAM.

GSR is approved for organic use with many organic agencies throughout the US and Canada. GSR Dormant Calcium is step one in the Soil Works program. GSR Calcium is a dry water soluble product. The high availability of the product allows the user to achieve results with minimal product. Application rates are in grams per acre, not tons. GSR Dormant Calcium creates a soil environment hospitable for the proliferation of soil microbes. Without GSR Dormant Calcium, most programs never reach their full potential.

Build a proper soil environment for the sustainable development of soil microbes with GSR Dormant Calcium.


GSR Growing Mix (green label): Best applied before, during and after planting or when available calcium levels indicate deficiency. Available in 1lb or 5lb bags.

GSR Growing Calcium is the companion product to GSR Dormant Calcium. While GSR Dormant Calcium is formulated for restructuring the physical soil environment, GSR Growing Calcium is formulated for the plant.

Due to the nature of soil testing methods currently available, many soil tests do not report on the availability of calcium in the soil. High excess lime rates, high soil pH, and mineral imbalances can also interfere with the availability of calcium in the soil. Your test may indicate you have stores of calcium in your soil, but the availability of the calcium for plant uptake is dependent upon many factors. GSR Growing Calcium is formulated to be electrically attracted to a plant’s roots not the soil colloid. By solubilizing the product in water, we can increase the availability of the product and feed the plant calcium when it needs it, where it needs it.

As with all our products, it is the FULL program which achieves results. GSR Growing Calcium is designed to provide the plant available calcium during the growing season. GSR Calcium is a dry, water-soluble product. The high availability of the product allows the user to achieve results with minimal product. Application rates are grams per acre, not tons. However, without the proper soil structure microbial activity results will be limited. Build the home with GSR Dormant Calcium and feed the plant your microbes with GSR Growing Calcium. The team of GSR Calcium products is the cornerstone of the Soil Works program. Begin and end your season with GSR Calcium.

Watch YouTube Vidoe: Effects of GSR calcium - Soil Works LLC