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Crop Services International: Soil Testing, Consulting, Agricultural Products Minerals & Microbes

Minerals & Microbes

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Standard Dry Trace Minerals

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We have been working with CSI for 10 years. Phil Wheelers’ recommendations, based on meticulous soil testing, have always been right-on. Working with CSI has helped us to grow high quality, nutrient dense vegetables. I also like knowing I can call Phil at any point during the season and he is there to help address any issues I might have.”
Michael, Michigan

Crop Services International: Soil Testing, Consulting, Agricultural Products Minerals & Microbes

800-260-7933
616-246-6039
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About Us

In 1971, Dr. Phillip Wheeler started his own organic farming operation near Vestaburg, MI while working for Michigan Tech University. READ MORE

Our Approach

We call ourselves Nontoxic/Sustainable/Biological. CSI also services Organic, Bio-Dynamic and Quantum orientated growers. READ MORE

Making the Transition

The first step in the transition process is to establish the existing mineral levels and ratios of your soil by testing. READ MORE

News & Articles

Our Grower Grazier Newsletter, Articles by Dr. Phil and more. READ MORE

Minerals & Microbes

Standard Dry Trace Minerals

About Us

Our Approach

Making the Transition

News & Articles