Starter
Calcium and inoculant
$16-26 per ac per yr- Pro-Cal rate set off CEC and calcium base saturation
- BioAct seed-applied biology
- Soil retest at season end
Beans that nodulate clean.
Calcium availability sets nodulation. Biology drives early-season root mass. Average lift on the Standard program is 4 bu per acre, with tissue tests confirming the rec.
Soybeans numbers
Average yield lift
+4bu/ac
Year-1 lift on Standard program soybeans, 2024 and 2025 paired-field reads.
Nodule count
+38%
Field-pulled nodule counts at R1, Standard versus untreated check, IA, 2024.
Cost per acre
$28-44
Standard tier all-in per-acre range across soybean ground in 2025.
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 root biology
$28-44 per ac per yr- Pro-Cal or Advanced-Cal sized to soil math
- RhyzoCatalyst in-furrow
- CarbonCore amendment
- R1 tissue test
Full
Full agronomy stack
$48-72 per ac per yr- Standard plus PhyloCatalyst foliar at R3
- Two tissue tests, R1 and R3
- KAc potassium foliar at pod fill
- 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.
+5.4 bu/acTrumbull Farms, OH, 2024
1200 ac beans, Standard program, paired against farmer-managed check.
+38% nodulesIowa State Extension pull, 2024
Average R1 nodule count, Standard versus untreated, four-county sample.
+0.4 pHA and L Lab pull, IL, 2025
pH lift after one Pro-Cal application at 5 gal per acre on bean ground.
Grower voices
"Cut 18 percent off the fertilizer bill. Beans came up cleaner. Yield monitor read 4 bu over the field next door."
J. TrumbullSoybeans, 1200 ac, OH+4 bu/ac
"Cut 18 percent off the fertilizer bill. Beans came up cleaner. Yield monitor read 4 bu over the field next door."
J. TrumbullSoybeans, 1200 ac, OH+4 bu/ac
Want a read on your soybeans 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 per-acre cost on bean ground.