Corn Farm


Crop Vitality represents a commitment to nurturing crop life through innovation, research and the development of sustainable crop nutrition for agriculture. Through sustainable sulfur solutions, Crop Vitality specializes in providing growers around the world with the crop nutrition tools they need to optimize their growing conditions. 

Our diverse fertilizer portfolio combines sulfur with essential nutrients to improve soil health, increase water infiltration and maximize nutrient uptake.

These products are manufactured with the highest quality standards at 13 strategic locations throughout the United States and Europe. Each product is thoroughly tested by expert chemists and agronomists to ensure Crop Vitality products meet the high expectations of today's growers.

Today, Crop Vitality is recognized as the leading brand of thiosulfate-based fertilizers.
Product Portfolio
Crop Vitality Team Photo

Our People

Our expert team of Crop Vitality Specialists and Agronomists are dedicated to providing detailed solutions for today’s most complex nutrient management systems.  The team shares more than 100 years of knowledge in crop fertility and soil nutrition with the global agriculture community. This highly educated and experienced group is positioned in specific regions around the U.S. in order to provide growers with expert guidance and product knowledge that is specific to their location.

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Seedling in Soil

Our Planet

Farmers have always taken care of their land and we want to continue that tradition. We ensure that all of our products are created and used with specific consideration for the environment. We provide the framework for achieving goals such as minimizing nutrient loss, alleviating the effects of nutrient runoff into waterways and more efficiently utilizing water by using the right products, at the right time, at the right rate, and at the right place. Our products support a future of responsible and sustainable crop production that meets the growing demand for food and nutrition worldwide.


Our Purpose

‘Nurturing Crop Life’ is not just our tagline, it signifies our ambition to deliver vital nutrients for optimal plant and soil health. Through science-based management plans and product performance, we uphold our commitment to supporting the world's growers while also promoting environmental, social and economic sustainability for all.

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Tessenderlo Kerley Logo Portrait

We are part of Tessenderlo Kerley, Inc.

Crop Vitality represents the specialty fertilizer business unit of Tessenderlo Kerley, Inc.

Tessenderlo Kerley, Inc. is part of Tessenderlo Group, founded in 1919 and the descendent of The Kerley Chemical Company, founded in 1947 by four brothers who recognized a growing demand for sulfur plant nutrition in Pecos, Texas, shortly after the end of World War II.

The Kerley Brothers developed a unique process for manufacturing sulfur-based liquid fertilizers that are safe, easy to handle and can be applied through irrigation equipment.

In the early 1950s, Kerley Chemical opened retail stores and began selling fertilizers to farmers, retailers and distributors throughout the western United States and midwestern corn belt.

Acquisitions, ownership changes and growth guided the company through the years, while Tessenderlo Kerley established itself as a leader in the production and marketing of specialty products used in the agriculture, mining and process chemical industries. Tessenderlo Kerley is now the world’s largest producer of sulfur-based thiosulfate fertilizers.

For over 100 years, Tessenderlo Kerley, Inc. has demonstrated its commitment to agriculture through innovation, research and the development of sustainable crop nutrition products. Our diverse product portfolio combines sulfur with essential nutrients to improve soil health, increase water infiltration and maximize nutrient uptake.

Thio-Sul Badge

Tessenderlo Kerley, Inc.

is the proud originator of:

Thio-Sul® -  the first liquid thiosulfate fertilizer.
SoluPotasse® - the best-in-class, water-soluble grade of potassium sulfate (SOP).
The Fertilizer Institute TFI - Member Badge

Crop Vitality is a member of The Fertilizer Institute (TFI)

The Fertilizer Institute