Organic Farming Fertilizer

Lafarge's high purity Agri-Gypsum is a 100% natural mineral and an excellent fertilizer for organic farming.

With its sulphur-rich properties, it improves soil structure and significantly boosts crop yields.



  • Gypsum is an evaporite mineral most commonly found in layered sedimentary deposits in association with halite, anhydrite, sulphur, calcite and dolomite.
  • Gypsum is the most common sulphate mineral; it is approximately 19-24% calcium and 14-19% sulphur in its pure form
  • Calcium Sulphate Dihydrate between 78-98%

Benefits of Agri-Gypsum

  • Reduces soil crusting
  • Increases soil nutrient retention
  • Reduces soil erosion Helps soil microorganisms to flourish
  • Increases soil water retention
  • Reduces the amount of other fertilizer
  • Reclaims sodic soil
Crops & Farming
  • Enhances crop production by allowing water and nutrients into soil
  • Benefits crops such as alfalfa, corn, cotton, wheat, and peanuts and where substantial amounts of sulphate sulphur are required (1.5 tons/acre)
  • 100% natural mineral, which is a suitable fertilizer for organic farming
  • Aids seed germination
  • Improves water infiltration
  • Increases stock yields
  • Stabilizes soil organic matter
  • Decreases nitrogen loss in the air
  • Keeps clay off of tubers and roots
  • Helps earthworms flourish
  • Used in turbid water, particularly ponds, to settle dirt and clay articles without injuring aquatic life
  • Gypsum products are infinitely recyclable and keep their natural properties during repeated application
  • Gypsum is recognized as acceptable for human consumption by the U.S. FDA
Plant Nutrition
  • An important source of: sulphur (18.6%) and calcium (23.3%)
  • Sulphur type is easily absorbable by plants
  • Gypsum does not affect soil pH

Sustainability at Every Angle

Lafarge Canada's Agri-Gypsum is more than a soil enhancer–it's a testament to our dedication to sustainable progress.

Fully natural and infinitely recyclable, it redefines the norms of farming, embodying our drive to build progress for people and the planet. 


Product Availability

  • British Columbia
  • Alberta
  • Manitoba
  • Saskatchewan
  • Ontario
  • Quebec
  • Nova Scotia

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