Pro-Cal

Bio-Activated Liquid Calcium

Stop wasting 30–40% of your fertility to acid soil.

In-season pH correction Source: AgriTec AR cotton program, soil-test confirmed inside the same season · At pH <5.5, 30–50% of applied N + P is tied up (U. Arkansas Extension cotton-fertility data). Pro-Cal moves pH and Ca availability in weeks vs the 18–36 months dry ag-lime takes to fully react.

Application rate

0.5–5.5 gal/ac based on soil pH and base saturation

Order Pro-Cal

Size Qty

Delivered pricing · —

Tanker loads are call-to-order: (833) 247-4832

Sized from your soil test

Does your soil actually need Pro-Cal?

Upload your soil test and we'll read every value on it. If your soil calls for Pro-Cal, you get the exact gallons and delivered price. If a different product would earn more first, we'll say that instead.

Crop Your acres

Drop your soil test here PDF, photo, CSV, or spreadsheet · from any lab

No test yet? Order a kit — or key your numbers in on the calculator. The read is free either way.

Pick your crop, enter acres, and drop the report. We'll tell you straight whether Pro-Cal is where your first fertility dollar should go.

Why it's in your program

The science. The payback.

Science

Liquid calcium that raises pH and balances Ca base saturation in weeks. AgriTec's AR cotton program documents in-season soil-test confirmation vs the 18–36 months dry ag-lime takes to react. With base saturation back in range, N and P stop getting tied up, and the entire crop-set delivery actually lands.

ROI

At pH <5.5, 30–50% of applied N and P is wasted (U. Arkansas cotton-fertility data; 32% of AR cotton acres). On a 1,500-ac operation running $400–500/ac fertility, Pro-Cal recovers that 30–40% without buying more inputs. It pays for itself by unlocking what's already on the field.

What it is

Bio-Activated Liquid Calcium

Liquid calcium that delivers the soluble Ca portion of lime in a fast-acting form: raises pH, balances Ca base saturation, and moves the soil test in weeks instead of waiting 18–36 months for dry ag-lime to fully react.

What rate do you need?

Find your soil, read your rate.

The general application rate for Pro-Cal, by soil pH and calcium base saturation — and how many acres each container treats at that rate. The lower your pH and base saturation, the more it takes to correct. An agronomist confirms the final rate against your CEC and the rest of your test.

Soil pH	Base saturation	Apply	5 gal jug treats	55 gal drum treats	275 gal tote treats
6.5–7.0	65–75%	0.5 gal/ac	10 ac	110 ac	550 ac
6.0–6.4	59–64%	2.0 gal/ac	3 ac	28 ac	138 ac
5.5–5.9	50–60%	3.0 – 3.5 gal/ac	1–2 ac	16–18 ac	79–92 ac
5.0–5.4	40–50%	3.5 – 4.5 gal/ac	1 ac	12–16 ac	61–79 ac
4.5–4.9	30–40%	5.5 gal/ac	1 ac	10 ac	50 ac

Already at 65–75% base saturation? You're in maintenance — half a gallon holds it. Not sure where you land? Run your soil test through the calculator. Delivered pricing for every size is on the order selector above.

Flexible financing

Order this. Pay over time.

Pay in 4*

PayPal Pay Later

Split your order into four interest-free payments right at checkout, or monthly payments on bigger orders. Approval takes seconds, no paperwork.

John Deere Financial

Put a full-season program on your John Deere Financial account. Apply through your dealer, or ask us how.

AgQuest

Finance your inputs through AgQuest and pay when the crop does. Ask us how to get set up.

*Terms apply. Financing options appear at checkout, terms set by the provider. The agronomy advice is always free.

The research

The evidence behind Pro-Cal, ours and everyone else's.

Every figure carries its source. Independent research shows where the agronomy holds up; our own replicated trials show it on the ground.

AgriTec trials

The full AgriTec wheat program yielded 99 bu/ac versus 79 on the conventional N-only control, a +25% lift on a replicated six-plot trial with identical starting soil (pH 5.4).

Agricenter International trial · Memphis, TN
Replicated on-farm trial partnerships across the Southeast: peanut (Auburn University), soybean (Alcorn State University), and forage (Tuskegee University).

AgriTec university trial partners

Independent research

Only 15–30% of applied phosphorus is recovered in the first year. Soil chemistry, not the fertilizer rate, gates how much P the crop actually sees.

FAO Bulletin 18: Syers, Johnston & Curtin 2008

Independent findings are general to the nutrient or mechanism and describe where a response is likely, not a guarantee on your field. Match them to your soil test; an AgriTec agronomist will help.

Research & catalog