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IA/MN/WI | We tried multiple programs. I gave the GMS guy the benefit of the doubt on how the product would provide ROI. The replications we tried were; 4 gallons in furrow with 4 gallons of water-4 gallons in furrow with 4 gal water plus 2 passes of foliar 1.25gal with water @ 10gpa-2 gallons in furrow with 6gal water and 4 foliar passes of 1.25 gallons with water @ 10gpa. Also did 4 gallons in furrow with4gal water and 5 gallons with water @ 10gpa through Y-drop. Did this on a moderate fertility 80 acre field, half the field had removal rate K applied with Potassium Sulfate(average K level on field is 183ppm), half the field had nothing applied(field P205 levels are 74ppm average, uniform ground and pattern tiled). There was a replication on either side of the fertility split. On the side of the field with no K applied I lost on average 14bpa.
The average cost of GMS was $80 per acre and corn was $5 at the time. My Potassium sulfate spread cost me $48. So my net loss per acre running the RECCOMENDED programs from GMS without dry fert was about $102 per acre. On the side that I ran a K spread and the programs I had a gain between 2-7bu, still an average net loss of $65 per acre.
If I had bit on the BS their old nutty agronomy manager(who also happens to be an owner) fed me and given them a few thousand of my corn acres it would have cost me over $500k in lost corn bu, If I would've just swapped all my starter over to it I still would've lost over $100k just because the stuff is twice the price that I pay for the zero salt product I use now.
This is why I don't buy from companies that sell one single product that they advertise to do everything awesome. Not to mention $10-12 per gallon is absolutely absurd for what they are offering. It's doesn't ROI no matter how its shaken or stirred, with or without dry fert it just isn't there.
Now I run an in-furrow product that comes as a dry powder that I premix with water in bulk tanks at the yard, my entire starter program costs slightly more than 1 gallon of GMS and it's actually lower in salt than the GMS. And I run foliar feed products that are actually formulated for foliar use, not a starter fertilizer applied foliar that definitely didn't work.
Edited by TheJoker 11/24/2025 15:07
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