Your LOCAL choice for Agronomic Experience and Knowledge.

Crop Protection - Crop Nutrient - Custom Application - Variable Rate - Seed - Seed Treatment

Murdock Answer Plot Vision Site

Come check out one of the largest Answer Plots in Minnesota. 

Located at 101 Van Norman Ave, Murdock, MN

Below is a birds eye view of the trials in the Answer Plot located by Murdock, MN





Winter Agronomy office hours 8:00 a.m. to 4:30 p.m.


MURDOCK: 320-875-2810  Benson: 320-843-4820  Clontarf:320-843-3949


In order to assist our growers with on-farm liquid fertilizer products we would like to provide a way for our customers to own liquid fertilizer storage tanks.  This program is designed as a partnership.  We want our growers to have enough product on hand during the busy spring season; while minimizing our transportation time and costs.

  1. Glacial Plains Coop will deliver up to a 6,000-gallon- poly tank plumbed with a bottom bung and valve.  The cost of this tank will be straight line depreciated over a 5-year period at the grower's expense.  Glacial Plains Coop will purchase and deliver the tank. GPC will invoice the grower each year for 1/5th the cost of the tank.  If a grower would like to buy out the tank they may do so based on the number of years remaining on the contract.  Example: Tank cost is $3,000. 5-year straight rate is $600/year. Cost to buy out after 2-years use would be $1,800.
  2. Glacial Plains Coop is open to helping growers determine what additional pumps, meters or plumbing they may need; but this additional equipment would be at the grower's expense. We would invoice the equipment under normal invoicing terms, or financing program.
  3. The grower agrees to purchase his liquid starter and side-dress fertilizer from Glacial Plains Coop for 5 planting seasons. If grower does not purchase his liquid fertilizer needs from GPC this contract is due and payable in full for any remaining balance.
  4. The grower is responsible for any damage to the tank until this contract expires. The grower is responsible for any crop injury caused by cross contamination issues.
  5. The grower is responsible for all equipment maintenance; including winterizing pumps, meters, and plumbing.

Call Glacial Plains Cooperative at 320-875-2810 Murdock, 320-843-4820 Benson, 320-843-3949 Clontarf for any further questions or details.




Here are some photos of corn stalks coming from ground treated with a nitrogen stabilizer vs. not treated with a nitrogen stabilizer. Stalk health can be very important, especially late season and these pictures say a lot about what a nitrogen stabilizer can do to keep stalks healthier, longer. We have seen the best results from Instinct, which is either blended with UAN or impregnated on Urea, or N-Serve which is injected with ammonia. Both of these nitrogen stabilizers have an EPA label and have made their mark in the industry, plus we have had side by sides with good yield results in favor of these products. Give a call to any of our agronomy facilities in Clontarf, Benson or Murdock to find out more on these stabilizers and the benefits of utilizing them on your farm. Thank You

Soybean Treatments

Are you currently treating your soybeans?  Have you ever weighed out the pros of putting a seed treatment on your soybeans if not treating them?  These are a couple questions to get the ball rolling in your mind about the true advantages of treating your soybeans.  We all can remember what last year was like with yet another late planting season, followed by what seemed to be an abnormal fall harvest season.  That being said, there is a lot of hype in the industry about sub normal germination of seed beans in our area.  All of the soybeans GPC will have met the standard on a germ test, but instead of being ninety to ninety five percent germ, most will be more in the mid to upper eighty percent germ.  In thinking of the last few (WET,COLD) springs we have had and the very good possibility of another,  this year may be the year to think long and hard of protecting your beans with a treatment.  University studies have shown that in warm planting conditions, you can improve stands by 5% and in cooler planting conditions, you can improve stands by 20%.  Say we plant at 140,000 plants per acre and our final stand without treatment is 120,000 plants per acre.  If we figure the cooler scenario of gaining 20% in population, that would bring us up to 124,000 plants per acre.  Now, one might say that 4,000 plants per acre wouldn’t make much of a difference but if you do the math, it does.  Lets say we have an average of 24 pods per plant and 2.5 seeds per pod which I think is getting as close as we can to what we may see out in the field in an average growing season.  So we would take 4,000 plants X 24 pods/plant X 2.5 seeds/pod to get 240,000 total soybeans.  Then we take 240,000 beans divided by 2,500 seeds/lb. divided by 60 lb./bushel to get 1.6 bushels more on treated vs. non-treated soybeans.  Dec.19 soybeans are $8.65 X 1.6 bushel to get $13.84 advantage per acre.  At GPC we use a treatment called Warden CX which we feel is a great seed treatment not only because it has proved itself in the industry, but because it has higher rates than any other treatment of Mefenoxam which aids in Pythium and Phytophthora control.  Those two diseases alone account for a major part of soybean stand loss and is why we feel it is a great product.  Getting back to cost, Warden CX for In Season use will be approximately $11.79/unit treated.  That leaves you with just over $2 an acre in your pocket for treating your soybeans.  It may seem like a large up-front cost but if it helps you from loosing plant stand and gets you a return on the back side, to me that is a good investment made.  In conclusion I would say with below normal germination scores and the possibility of another later spring, this may be the year to again treat or try out treating your soybeans. 

As seen in the picture above, if we happen to get a stand below 90,000 plants per acre, you fall right off the yield cliff and it can be quite detrimental.  As you add a treatment like Warden CX, you pull yourself further away from that cliff to gain and keep more yield.  Sometimes putting it into an illustration like this can better help us understand and visualize the positives of not only seed treatments but many other plant health/yield aiding products in our industry.  If you have any questions regarding seed treatments please call any one of our agronomy locations in Clontarf, Benson or Murdock and we would be glad to help and answer your questions.  Don’t forget to mention Clariva for cyst nematode protection or Vault HP to inoculate your soybeans, especially if being grown after continuous years of corn.  As always we appreciate and value your business and look forward to serving you in the 2019 growing season.

Cage Tote PUMPS

Due to liability concerns, Glacial Plains Cooperative Agronomy departments in Murdock, Benson and Clontarf, will no longer be lending out pumps and hoses for chemical cage totes. New pumps can be purchased from Abner Sales and Service located in Benson, MN or a place of your choice. Approved chemical totes with pumps will be available in limited supply for most of our bulk products at all three locations. Thank you for your continued support of your cooperative.


Give your GPC Agronomist a call to book 2019 fertilizer and chemical needs.  This

allows us to have product on hand for in season orders.  

If you would like Glacial Plains Coop to soil test for you give us a call at 320-875-2810.

 Early order discounts available. 

Keep us in mind for all your financial needs.

Croplan Finance Page
Financing Programs

Glacial Plains Fertilizer Financing Programs

  • John Deere Finance
  • CHS Capital

Applications available thru your agronomist or contact the Financial Services Manager: Aaron Vadnais

1-320-875-2810 or



Monsanto Finance Program

This article was send to us thru an email.  It is good information regarding planting days. Click for full article.


Thanks to all of our customers for your continued support and business. If you have any questions or concerns feel free to give any of our agronomy sales staff a call. We would be glad to help you succeed this year.