Phone: (208) 734-3050 · Toll Free: (800) 759-3050 · FAX: 734-3919 ·

About Us


Stukenholtz Laboratory is a family owned and operated business founded in 1970 by Dr. Dale Stukenholtz and Joyce Stukenholtz.

Dr. Stukenholtz came from an unusual and diverse background. He earned 3 degrees in agriculture, including a PhD in soil science from the University of Nebraska where he also taught. He worked as an agronomist and also a farmer. After moving to Idaho, he saw a need for a non biased commercial laboratory that could test soils and tissues for local farmers. Over the years Dr. Stukenholtz, through many field trials and research, established a large database of improved fertilizer recommendations geared towards maximum economic return to the grower. That accurate and effective database quickly became popular and helped mold the fertilizer guidelines for the Intermountain West, which are still followed today.

Stukenholtz Laboratory proudly serves the intermountain west as well as international countries such as Egypt, New Zealand and Mexico. We are NAPTP certified and participate in the Minnesota Dept of Ag manure proficiency program. We provide a pickup and delivery service from St. Anthony to Wendell Idaho with a quick turn around time of 1 to 2 days. Results can be mailed, faxed, emailed or downloaded from our website. We take pride in our core values and strive to provide superior customer service and satisfaction.

In 2006 Dr. Stukenholtz passed away. His knowledge, hard work ethics and integrity are carried on today by his son Paul Stukenholtz, daughter Barbie Holt, wife Joyce and employees that worked side by side with Dr. Stukenholtz for over 30 years.

Our staff includes: JP Kruckeberg (Certified Crop Advisor with our company for 37 years); Bart Kunz (Certified Crop Advisor with our company for 16 years); Cameron Brower (Certified Crop Advisor with our company 10 years); Antone Christensen (Certified Crop Advisor with our company 8 years); Wes Gibson (Certified Crop Advisor with our company 6 years). Our technical laboratory staff all hold college degrees in Chemistry and or Agricultural Sciences.

We look forward to maintaining our strong values and invite the opportunity to grow with new and existing clients.