Rake, IA

Consulting Clients with Sustainable Recommendations to Maximize Production

Asmus Farm Supply

50245 40th Ave
Rake, IA 50465
Phone 641.566.3658
Fax 641.566.3777

Winter hours

Monday – Friday: 8 am – 5 pm

Saturday & Sunday: Closed

Summer hours

Monday – Friday: 7 am – 5 pm

Saturday: 7 am – Noon

Sunday: Closed

Asmus Farm Supply’s Rake location is our corporate office, located north east of the small town of Rake, Iowa,  just 1/4 mile south of the Iowa/Minnesota border.


Our Rake location has numerous options available to meet your needs. We carry and support all major chemical manufacturer’s products and supply Chemical, Fertilizers, Seed & Seed Treatment. Our Agronomists are all CCA certified and highly trained to help develop a customized crop protection plan for your operation. If you have questions throughout the year on the products we sell, we encourage you to call or stop in and talk with any one of us.

We are setup to provide packaged or bulk products and carry a large supply of mini-bulk tanks available to our customers to meet the growing needs of today’s operations. However, unlike most retailers, we do not provide custom application services. If you are in need of someone to make custom ground or aerial applications, we have a list of quality custom applicators that fall within our sales geography.

Asmus Farm Supply is also proud to have a Pioneer Seed Dealership at our Rake location since 1964. If you’re interested in learning more about what Pioneer has to offer, come talk to our Pioneer Pro Rep, Devin Helming.

Harlan Asmus

C.C.A., Owner, Director of Chemistry Purchasing and Sales

Harlan is a second-generation Manager of the family business. He joined AFS in 1987 after graduating from Iowa State University with a Bachelor of Business Management degree. Since coming back to the family business after graduating college, he has held various job titles including Warehouse Assistant, Seed Sales, Crop Consultant, CCA Agronomist, Purchasing Agent, and Chemical Programs Administration. Harlan now is the company President but continues to work with clients and manages product procurement and pricing for the chemistry department. He encourages integrity-based relationship selling amongst the AFS staff and spends considerable time nurturing relationships with manufacturing suppliers and AFS clients.

Amy Asmus

C.C.A., Owner, Specialty Crops, External Relations, IT Coordinator, Public Speaker

Amy holds a bachelor of Fine Arts degree in Graphic Design from Iowa State University and has been Certified Crop Advisor since 2004. Since getting her CCA, she has participated in state CCA board roles on marketing committee, credential review committee, chairperson in 2010, and currently as a CCA representative to the Agribusiness Association of Iowa board. She is a member of the Tri-Societies (ASA CSSA SSSA), serving on the Science Policy Committee and is involved with Congressional Visits and Public comment periods. Amy is  also an industry consultant for DeMatteo Monnes, where she has been sought out to share her opinion on trends involving agricultural seeds and chemicals. She is an industry consultant on CropLife Magazine’s PACE Advisory council. Amy was raised near the Quad Cities and came to northern Iowa after her marriage to Harlan in 1987. Amy is the mother of three wonderful children, where two of them have come back to the family business. She is active in her church and loves to read, garden quilt and travel with her family.

Darcy Swearingen

Accounting & Bookkeeping

Darcy joined the Asmus team summer of 2016. Currently she lives in Thompson, IA with her husband Jay and together they have five children. In her free time she enjoys spending time with her family and friends. Darcy is excited for the opportunity to continue to work in agriculture and be apart of the AFS team.

Pat Kahler

Executive Assistant

Pat joined the Asmus team in the Summer of 2012 with a broad knowledge of systems administration and support for agribusiness environments. His duties for the Asmus team will cover all administrative needs for the leadership team as well as coordination of communications between the Asmus’ and their wide-reaching sales force and client base

Garrett Asmus

Executive Assistant & Finance

Garrett is the third generation at Asmus Farm Supply. He recently joined the AFS team in December of 2016 after graduating from Iowa State University in Agricultural Studies. Garrett grew up on the family farm in Rake, IA where he spent his time helping where needed at AFS and on the farm. Besides working at AFS, Garrett is a volunteer fire fighter and enjoys working on projects around his house.

Billie Kay Asmus

Communication & Marketing Director

Billie graduated from Bethel University in 2015 with a Bachelors degree in Organizational Communication & Marketing studies. She grew up in northwest Wisconsin surrounded by more trees than cornfields but enjoys the new view. Billie enjoys spending her free time reading and being outdoors. Billie primarily takes care of any creative & design projects for AFS along with marketing and advertising. Should you have any inquires, please don’t hesitate to reach out.

Bil Schrader

C.C.A., Seed Department Manager

Bil has been with AFS since 1999 and holds a Bachelor’s of Science degree in Agronomy from the University of Wisconsin/River Falls. Bil was raised on a family farm near Easton, MN which he lives on and continues to operate today. Before working at AFS, Bil had several years of experience in seed, chemical, and fertilizer sales. Bil manages our AFS seed business as well as selling crop protection products.


Holden Asmus

C.C.A, Seed Treatment Department Manager

Holden is the third generation at Asmus Farm Supply.  Holden began with AFS after graduating from Iowa State University in May of 2014 as a chemistry sales agronomist.  Holden grew up on the family farm in Rake, IA where he spent his time watching both the farm and AFS grow.  Besides working at AFS, Holden also works with cattle on his family’s farm, is a volunteer firefighter, and an active alumni of the Alpha Gamma Rho Fraternity.

Jason Christensen

C.C.A., Sales Agronomist

Jason started with AFS in January of 2010. Jason grew up on a family farm near Ringsted, IA and continues to play an active role in the operation today. Prior to working at AFS, Jason worked for an independent retailer in Aberdeen, SD selling seed and chemical. He is a 2007 graduate of South Dakota State University and holds a Bachelor’s Degree in Agronomy. When not working on the farm or at AFS, he enjoys hunting and fishing

Nate Eitzmann

C.C.A., Crop Protection Sales Agronomist.

Nate joined Asmus Farm Supply in the Fall of 2012 from his agronomy position in eastern Nebraska. He will be rounding out our chemical sales and support division with Harlan and his team. If you have questions or need assistance with your ag chemical needs, please feel free to give Nate and the Asmus team a call.

Devin Helming

C.C.A., Head of Pioneer Seed Sales

Devin joined AFS in January of 2009.  He is a Certified Crop Advisor, and his role includes managing the Pioneer Pro Rep Agency, and also represents Pioneer Crop Insurance.   Devin attended Iowa State University, obtaining a Bachelor of Science degree in Agronomy.   Prior to that Devin worked 6 years at an Agribusiness company that included experience both in retail, and at the corporate headquarters.  Also he spent 5 years working in the financial services industry in the Twin Cities.

Devin is married to Sarah, and together they have 3 boys.  One of his favorite things to do is cheer on his boys in their many activities, both as a fan, and a coach.

Cody Wirtjes

C.C.A., 4R NMS, Plant Nutrition Sales Agronomist

Cody joined AFS in February of 2012 and holds an Associate’s degree in Applied Science of Agricultural Sales & Service and Agricultural Operations Management. Cody grew up around a fertilizer and chemical business in Thompson, IA. Prior to working at AFS, Cody worked for two local cooperatives as a custom applicator and sales support staff. Cody is involved with nutrition products and additives as well as handling of these products. Cody strives to be an excellent partner for all AFS customer’s plant nutrition needs. He and his wife, Alicia, reside in Buffalo Center, IA and have two children, Rowan & Ross.

Mike Perkins

C.C.A. Plant Nutrition Sales Agronomist

Mike started his career in 1993 as a custom applicator, later moving into sales. Mike became a CCA in 2000, and has been working in sales since then. Mike has 22 years experience in agriculture, working in all aspects of the farm- Plant Nutrition, Crop Protection, Seed and Precision Agriculture. Mike is married and has 3 children. He spends most of his time fishing, hunting, and spending time with his family.

Seth Holland

Plant Nutrition Sales Agronomist

Seth recently joined the AFS team in March, 2017. Seth is married to Jessica and together they have two boys. In his free time, he volunteers with the Bricelyn Fire Department and enjoys hunting and fishing. He also currently farms with his step dad and brother around the Bricelyn area.

Matt Robinson

Warehouse Manager

Matt started with AFS in February 2018. He has been involved in the transportation and ag industries for 25 years. Matt looks forward to taking a proactive approach at meeting customers needs in a timely fashion and getting to know them in the process. Matt and his partner, Roxy live in Buffalo Center and have three kids; Shandra, Lizzy and Cameron. They all enjoy spending their time together fishing and being outdoors.

Jordan Newton


Jordan joined the AFS warehouse team in the spring of 2013. He strives to provide good customer service and promptness in filling orders. He enjoys spending his free time in the outdoors. His hobbies include fishing, hiking, and hunting. Jordan and his wife Sarah have two daughters, Madelynn, and Bailey. They enjoy watching them grow up and learn new things every day.

Nick Haugen


Nick Haugen joined the AFS warehouse team in the Spring of 2013. He looks forward to working with the customers, getting to know them and promptly filling their orders in a timely manner. Nick married his wife Halie in 2015 and together they live in Buffalo Center and have a little girl, Sadie. His hobbies include hunting, fishing, and shooting. He looks forward to having a long and positive career with AFS.

Jeb Kothenbeutel

Plant Nutrition Warehouse Personnel

Jeb graduated from DMACC, where he studied Diesel Technologies. He grew up in Buffalo Center and enjoys helping on the farm in the spring and fall and helping manage the company vehicles. Jeb is married to his wife Savana and together they have their daughter Adalyn.

Craig Eischens

Plant Nutrition Warehouse Personnel/Truck Driver

Craig recently joined the AFS team in the spring of 2017.

Arnie Roth


Arnie has been with AFS since the Fall of 2002. He is our truck driver responsible for making early season chemical deliveries as well as  warehouse duties when he’s not on the road. Arnie also knows a great deal about servicing the tanks and pumps that we provide our customers. His enthusiasm makes him an asset here at AFS.


Troy Armstrong

Head of Maintenance and Janitorial Duties

Troy started at AFS in February of 2012. He is responsible for Maintenance, and Janitorial duties around the Rake facility. In his spare time he is the Mayor of Buffalo Center. He also has been involved with the Buffalo Center Ambulance since 1988. He is married to Sue, and they have a son named Spencer. He enjoys hunting, fishing, and playing cards with the family.


Since 1960

Consulting Clients with Sustainable Recommendations to Maximize Production