Pro-Sul

Nitrogen-Sulfur Liquid (12% N, 26% S)

Replace the sulfur the Clean Air Act took away.

Solubilizes P, Zn, Mn, Fe, Cu Source: AgriTec internal (thiosulfate-S converts to plant-available sulfate in 1–3 weeks while unlocking tied-up micros) · Atmospheric S deposition fell ~66% since 2002 (Benish 2022 ACP), so fields that didn't need S supplementation 20 years ago now do. Camberato Purdue: +14 bu/ac corn at S-responsive IN sites (6 of 11 trials). Heavy/high-OM ground often does not respond.

Order Pro-Sul

Size Qty

Delivered pricing · —

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

Sized from your soil test

Does your soil actually need Pro-Sul?

Upload your soil test and we'll read every value on it. If your soil calls for Pro-Sul, 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-Sul is where your first fertility dollar should go.

Why it's in your program

The science. The payback.

Science

Thiosulfate-S converts to plant-available sulfate in 1–3 weeks while pulling tied-up P, Zn, Mn, Fe, Cu into availability. Atmospheric S deposition fell ~66% since 2002, so fields that didn't need S 20 years ago now do.

ROI

Pays back twice: direct S yield response (extension data: +14 bu/ac corn at responsive sites) plus N-use-efficiency gain (S enables N use). One product, two channels of return. Most leveraged on low-OM / sandy / eroded ground.

What it is

Nitrogen-Sulfur Liquid (12% N, 26% S)

Thiosulfate sulfur form that converts to plant-available sulfate within 1–3 weeks. Improves sulfur status and solubilizes P, Zn, Mn, Fe, Cu for better plant utilization.

What it returns

Returns on investment per container.

Pick the size that fits your acres. Every tier is delivered: freight already in the number, no surprises at the dock. The return is what the pro-sul unlocks on your fields, not what's on the invoice.

Container	Delivered total	Shipping
55 gal drum	$750	freight included
275 gal tote	$2,000	freight included
4000 gal tanker	Call to order	(833) 247-4832

Freight is already in every delivered total.

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-Sul, 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

Corn responded to sulfur in about half of trials (the S-deficient, low-OM and sandy fields), averaging ~+11 bu/ac on responsive sites.

Purdue (26 of 55 trials) + Iowa State (47 sites)
Ammonium sulfate recovered ≥10–17% herbicide control in hard water by tying up antagonistic cations.

Devkota & Johnson 2016: Weed Technology

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.