Starter
pH and calcium correction
$22-32 per ac per yr- Pro-Cal rate set off CEC and calcium base saturation
- In-furrow biology pack
- Soil retest at season end
Corn that pulls calcium first.
Pro-Cal at planting, biology around the seed, tissue check at V6. The Standard program lifted 6 to 12 bu per acre on grower yield monitors in 2024 and 2025.
Corn numbers
Average yield lift
+8bu/ac
Year-1 lift on Standard program corn, 2024 and 2025 grower yield-monitor pulls.
Calcium base saturation
+6pts
Average calcium base saturation move after one season on Pro-Cal.
Cost vs. conventional
-12%
On per-acre fertility spend after Pro-Cal layer replaces redundant inputs.
Three tiers. Pick the fit.
Starter is a pH and calcium correction. Standard layers biology and efficiency. Full is the whole stack with tissue-driven adjustments.
Standard
Calcium plus efficiency stack
$38-56 per ac per yr- Pro-Cal or Advanced-Cal sized to soil math
- BioAct + RhyzoCatalyst at planting
- NitroMax efficiency layer
- V6 tissue test included
Full
Full agronomy stack
$62-92 per ac per yr- Standard plus PhyloCatalyst foliar at V8
- Two tissue tests, V6 and tassel
- PyroLift bio-stimulant at stress windows
- Yield monitor analysis at harvest
What the data says
Every number below comes from a grower yield monitor or a paired soil test. No models. No projections.
+12 bu/acReynolds Farms, IA, 2024
1800 ac corn-on-corn, second year on Standard. Yield monitor side-by-side.
+8 bu/acHolscher Farms, IL, 2025
2200 ac corn / soy rotation, first season on Standard plus tissue.
+0.5 pHWard Lab pull, OH, 2024
pH lift over 12 months without a lime application. Pro-Cal at 4 gal per acre.
Grower voices
"Pro-Cal in the planter and a tissue test at V6. That is the program. Yield monitor was up 12."
K. ReynoldsCorn, 1800 ac, IA+12 bu/ac
"Standard program ran cleaner all season. Cut my UAN bill 18 percent and still picked up bushels."
R. HolscherCorn, 2200 ac, IL-18% N cost
"Pro-Cal in the planter and a tissue test at V6. That is the program. Yield monitor was up 12."
K. ReynoldsCorn, 1800 ac, IA+12 bu/ac
"Standard program ran cleaner all season. Cut my UAN bill 18 percent and still picked up bushels."
R. HolscherCorn, 2200 ac, IL-18% N cost
Want a read on your corn ground
Send your latest soil test and a rep will run a Starter, Standard, and Full tier with the calcium math, the biology stack, and the per-acre cost.