WillRock Ag NKB-S Foliar - Corn
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$4.50
Per acre
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1 pt
Rate per acre
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14%
Soluble potash
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Timing
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Applied at R1 in the WillRock Corn Full Send program.
Grain fill is where the yield is won or lost, and it is the hungriest the plant will ever be.
WillRock Ag NKB-S Foliar is the reproductive-stage partner to Complete Foliar. It carries 14% soluble potash, 4.48% sulfur and 1.20% boron into the plant right when kernel set and fill are drawing hardest, backed by the same two biostimulant metabolites — proline and trimethylglycine — plus dextrose and a leonardite fulvic fraction. About $4.50 an acre at the R1 pass.
Potassium is the nutrient that moves sugar. If the plant runs short during grain fill, it is not a deficiency you can see in time to fix — the kernels are already lighter.
What’s working for you
Potassium at 14% soluble potash drives the movement of sugars, nutrients and water through the plant. This is the single biggest lever on kernel retention and grain fill, and the reason this product goes on at R1 rather than earlier.
Sulfur at 4.48% and boron at 1.20% support protein synthesis and reproductive development. Boron is directly tied to pollination success and kernel set.
Proline and trimethylglycine carry over from the vegetative pass — the plant is primed against heat, drought and rapid-growth stress during the weeks when a stress event costs the most bushels.
Dextrose and fulvic fraction at 1.00% each provide a readily available energy source and improve nutrient mobility and function once inside the plant.
Why growers choose it
- Built for reproductive stages — potassium, sulfur and boron timed to kernel set and grain fill
- 14% soluble potash — the nutrient that moves sugar to the ear
- Improves nitrogen use efficiency — gets more out of the nitrogen already applied
- Stress protection at the worst possible time — proline and trimethylglycine through heat and drought at R1
- Bio-ready surfactant system — tank mixes safely with live biological microbes
- Rides with a fungicide pass — no additional trip across the field
Coverage
Sold in 2 × 2.5 gallon jugs (36 cases per pallet) or 250-gallon totes. At 1 pint per acre, one case covers 40 acres at about $4.50 per acre in the WillRock Corn Full Send program.
How to apply
Apply as a foliar at 1 pint per acre per application. In corn, the window runs from VT through grain fill; the WillRock Corn Full Send program places it at R1. More frequent applications at 1 pint per acre may be needed to correct a deficiency once it appears.
Fill the mix tank with half the required water volume and begin agitation. Add products in this order, mixing thoroughly after each addition: adjuvants, pesticides, then fertilizers. Fill with the remaining water and continue agitating until fully mixed.
Specifications
| Crop | Corn (also labeled for soybeans, wheat and small grains) |
| Product type | Reproductive-stage foliar nutrition and biostimulant |
| Package | 2 × 2.5 gallon jugs (36 cases per pallet) or 250-gallon totes |
| Net weight | 26.95 lb per 2.5 gallon jug |
| Density | 10.78 lb/gal |
| Cost per acre | About $4.50 |
| Timing | R1 in the WillRock Corn Full Send program; labeled VT through grain fill |
| Application rate | 1 pint per acre per application |
| Biostimulants | L-proline and trimethylglycine |
| Tank mix | Bio-ready N-solution surfactant system; compatible with biological microbes |
Guaranteed analysis
| Total Nitrogen (N) | 2.00% (0.50% ammoniacal, 0.50% nitrate, 1.00% urea) |
| Soluble Potash (K2O) | 14.00% |
| Sulfur (S) | 4.48% |
| Boron (B) | 1.20% |
| Molybdenum (Mo) | 0.25% |
Derived from ammonium molybdate, boric acid, potassium sulfate, proline, trimethylglycine and urea ammonium nitrate.
Also contains
| Dextrose | 1.00% |
| Fulvic fraction (derived from leonardite) | 1.00% |
Always read and follow label directions.