641.566.3658 support@afschem.com

Now Hiring!

Our Estherville, Iowa location is currently hiring for our Warehouse/Trucking position. Apply online!

Weekly Agronomy Update

Watch this weeks agonomy update discussing fall application and nitrogen stabilizers

Shop Online!

Shop from the comfort of your home (or tractor) on our website! We offer a variety of products including chemicals, fertilizers and seed treatment! Some products and offerings will also have the option to have free shipping directly to your farm or pick up from any one of our 5 AFS locations.

AFS Protocols Regarding COVID-19

Please view our current protocols and updates regarding business hours and locations. 

Shop Online or Through our App!

Whether you’re in your tractor or hauling grain in your truck, we’ve got your back. The AFS Storefront and App can help you save time at the click of a button to submit quote requests on a variety of products or browse products as you’re thinking about the growing season and into next year.

Have questions? Don’t hesitate to give us a call at any one of our locations. All of our agronomists can walk you through what you’re looking for.

How it Works

  • Visit our online storefront or download our Asmus Farm Supply app in the app store on your mobile phone. 

  • Submit an access request to browse products and prices. *Approval of access to prices and products are usually available within 24 hours. 

  • Browse hundreds of products, check product labels, and submit quote requests for products that you’re interested in. 

  • Add the product to your cart and checkout! All major credit cards are accepted as well as bank transfers through our secure website. We also support several financing options as well. 


In the late 1950’s, Harvey Asmus introduced a new way to farm. Chemical weed control was not a foreign concept, but it certainly wasn’t adopted by the masses. Regardless, Harvey believed in the future of farming and stood with his clients from planting through harvest and made a commitment to helping their operation succeed. Within the first decade of it’s existence, Asmus Farm Supply flourished in the new era of farming.

At Asmus Farm Supply, selling is more than just price. We commit to building personal relationships with each of our customers through face-to-face business. We strive to listen to your production problems, and through our product knowledge, recommend a program that is tailored to your needs.

Family Oriented

Asmus Farm Supply was founded on family. Without the support it took from our family members, we wouldn’t be where we are today. A majority of farms are multi-generational and we know the value that each individual holds when it comes to making your operation run. The Asmus Family Farm and business has been family owned and operated for the last three generations, so when you walk in our door, know that you will be treated like family with a warm welcome.

Mission Statement

“Consulting Clients with Sustainable Recommendations to Maximize Production”

AFS is laid on the foundation of giving quality and sustainable recommendations for our growers to not only continue being stewards of the land, but stewards of our neighbors while helping you maximize your yield and crop potential.

“I like working with AFS because they’re very unbiased on the chemicals they push, being such a large dealer and I put a lot of faith in what they recommend.”

Adam from Woden, IA