Magnesium sulfate (MgS) is one of the most cost-effective and commonly used forms of magnesium in agriculture. Magnesium plays a significant role in chlorophyll synthesis and controlling the activity of enzymes in plants. Sulfur is also a macronutrient which has important roles in plants biological processes.

Cropsoul magnesium sulfate is a 1-3 mm crystal form fertilizer with high solubility that could be used in all irrigation systems when plants need magnesium.