
Latest Corn Field Trials Show Strong Cost Savings
We recently completed a field trial on corn coordinated with Meyer Farms of Addieville, Illinois and the results are in! This trial compared the yields using our patented SUL4R-PLUS product and the grower standard N-P-K fertility treatment with varied reductions in the amount of nitrogen applied. So how did it work out?
Through this test, we saw strong results to demonstrate the effectiveness of SUL4R- PLUS. On a 30-acre trial, we used our continuous release fertilizer and confirmed that less nitrogen was needed to result in the same or improved crop yield. In this trial we reduced the nitrogen application by 10% and reached a positive revenue difference of $188.21/acre vs their grower standard nitrogen application rate.

To estimate margin improvement per acre associated with varying the nitrogen application rate, we carefully split the 30-acres into three 10-acre plots and tested a 10% ammonia (NH3) reduction on plot 1, 20% NH3 reduction on plot 2, and finally a typical “grower standard” NH3 application on plot 3. All other nutrient application rates (P-K-Ca-S) were the same. We saw the largest margin per acre increase on plot 1 with plot 2 also showing positive results.
| REVENUE/ACRE | TOTAL REVENUE NH3 COST | REVENUE/ACRE DIFFERENCE FROM NORMAL NH3 APPLICATION | |
| PLOT 1 – 10% NH3 REDUCTION | $1,816.65 | $1,682.04 | $188.21 |
| PLOT 2 – 20% NH3 REDUCTION | $1,681.88 | $1,562.23 | $68.40 |
| PLOT 3 – NORMAL NH3 APP | $1,643.40 | $1,493.83 | $0.00 |
These results aren’t standalone either. See our previous corn field trials conducted in Western Kentucky to learn more about our results and the consistent savings you could find with SUL4R-PLUS. Want to increase your yields and fight inflation? Talk to our sales team today.
Get expert insights, company news & trial data.
Here’s a few similar resources we think you may find interesting.

Calcium Clarified: Corn
Calcium is an important nutrient for proper corn plant nutrition. Even though it is a secondary nutrient, calcium is critical for optimizing plant strength, ear and kernel development and plays a key role in numerous physiological processes throughout the plant.
Read More
SUL4R-PLUS and HELM Crop Nutrition Americas Announce Exclusive Partnership
We are thrilled to announce our exclusive partnership with HELM Crop Nutrition Americas, a leading name in agricultural logistics and distribution.
Read More
Don’t Lose Young Crops to Salt Burn
Virtually all fertilizer materials are salts. And while fertilizer can make an enormous, positive difference in the quality of your crops, it can also sometimes cause salt burn.
Read More