Wheat crop
Nurturing Crop Life

Crop Vitality

Producer of Tessenderlo Kerley's specialty fertilizers for agriculture.

Explore Products

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Prevent Nitrogen Loss

Learn how by adding Thio-Sul to your liquid nitrogen blends, you can both protect against nitrogen losses as well as provide essential sulfur your crops need to thrive.


soybean rows


Learn more about specific crop nutrition.


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Meet Our Agronomists

Meet our highly educated and experienced agronomists who are positioned to provide growers with expert guidance and product knowledge that is specific to their location in the U.S.


Seedling in Soil


Sustainability and stewardship are our business model. 


News & Insights

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    Enhancing California Agriculture by Harnessing the Benefits of Thiosulfate Fertilizers

    In March of 1991, the first load of KTS®, potassium thiosulfate, was sold in the state of California. Since that time the product has steadily grown to become a standard potassium fertilizer in California agriculture. The staying power of KTS and its continued consistent growth to this day, is due to several beneficial factors. For one, KTS is a...
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    CaTs as a Dual Nutrient Source-Acidifier for Combatting Citrus Greening

    CaTs® (0-0-0-10S-6Ca) is a highly soluble source of calcium and sulfur, produces acid when the sulfur reacts in the soil, and is well suited for application in irrigation water. Because of these properties, CaTs is a valuable tool for combatting citrus greening and achieving improved yields. One of the hallmarks of citrus greening is a degraded...
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    Two Key Nutrients for a Strong Soybean Crop

    Potassium and sulfur – both available in K-Row 23® – can boost early-season plant growth and improve yields when applied in-furrow.
Pivot Irrigation

For over 100 years,

Crop Vitality, Tessenderlo Kerley, Inc. has demonstrated its commitment to nurturing crop life through innovation, research, and the development of Tessenderlo Kerley fertilizers. Our diverse product portfolio addresses the challenges of modern agriculture by combining essential nutrients to improve soil health, increase water infiltration and maximize nutrient uptake.