With you from the beginning...

About Us


Your prescription for success in the field

Unlock the potential in your soil. Through soil analysis, cumulative yield data, and over 25 years of experience in the field Agronomy Rx cultivates effective strategies to optimize the productivity of your acres.    


Our roots run deep

Founder of Agronomy Rx, Larry Eekhoff, was in the agronomy and fertility mapping business long before “GPS” was a common acronym. A key player in the development of a prominent area cooperative’s fertility mapping software, Larry retired from the Ag Cooperative industry in 2013 and began consulting area growers seeking to maximize the productivity of their operations. As demand for his services grew, he established Agronomy Rx in Webster City and the business now serves over 70,000 acres in central Iowa.     


Here for the long haul

Without healthy soil, there are no healthy plants. At Agronomy Rx, we have the tools to assess the current state of your acres, the technology to provide accurate recommendations for fertility applications, and innovative natural biological products to repopulate the rootzone with beneficial microbes depleted by common tillage practices.   



Check the vital signs of your soil: grid sampling

Before any good practitioner makes a diagnosis, he assesses his patient’s current vital signs. Agronomy Rx harnesses the power of Global Positioning Systems to accurately map grid sample points for a full panel of soil tests. Results from soil tests are coupled with soil type maps and harvest map data to provide a composite picture of the overall health of the soil.

Document baseline values

With grid sampling, soil type, and harvest maps in hand critical data are compiled into a report for the producer’s review. Together, the partners in production review the findings for each field and formulate a workable solution for the coming growing season. Like each patient, each field has its own unique fertility requirements. Balanced nutrition is essential not only for healthy people, but also for healthy, vibrant soils.

Pick up your prescription; follow doctor’s orders

Soil pH, nitrogen, micronutrients, seed variety, population…all variables in the grand equation that can equal optimal yield. Agronomy Rx provides prescriptions deliverable right to the tractor, shared with cooperatives electronically, or shared with the producer via cloud services. With the power of site-specific application, the producer has the capacity to apply the right dose of treatment to the exact acre in need of remedy.

Monitor outcomes, hit pay dirt

Anhydrous has been applied, fertilizer spread exactly where it was needed, quality seed accurately placed in warm spring soil…the work was planned; the plan is working. However, neither the producer nor Agronomy Rx is done-they have only just begun. Crop scouting services and comparative data are collected throughout the growing season leading up to the day the grain lands in the bin. Harvest data is added to the field profile, adding an annual chapter in the medical record of the field.  Agronomy Rx is committed to the long-term success and health of the farm; harvest data is compared to previous years, fall fertility recommendations are prepared, the cycle continues.

One earth, one body, one health

We borrow our land from our children. Agronomy Rx is committed to leaving the land in a better state than it was when we came to it. While we have long understood conventional agronomy, we are now taking a closer look at the microsphere that resides within the soil profile: billions of microorganisms living within the depths of the rootzone.  

With a greater understanding of the biology occurring around the root, we can begin to put beneficial microorganisms to work. Picture this: as the root pushes through the soil, layers of that root are abraded off-providing a food source for bacteria nearby in the soil. While some bacteria are harmless-or even helpful-others might damage that root, and inhibit growth. Consider the potential when beneficial microorganisms surround the root and pave the way for root growth. Agronomy Rx is partnering with two companies on the leading edge of microbial seed and soil inoculants, Biodyne-Midwest and MycoGold. With many area growers using the product, we look forward to sharing 2017 comparative data soon. For more information, see http://biodyne-midwest.com/ http://www.mycogold.com/ 


Sign up to hear from us about specials, sales, and events.

Contact Us

Better yet, see us in person!

We love our customers, so feel free to visit during normal business hours.


1961 James St., Webster City, IA 50595

(515) 571-7260


Monday - Friday: 8am - 5pm

Saturday: By appointment

Sunday: Closed