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3-18-18-1 + 1% S · Max Uptake

Liquid Fertilizers

3-18-18 Max

Orthophosphate P-K + 1% Sulfur + Max Uptake

The 3-18-18 starter with sulfur and Max Uptake built in.

Starter P +5.2% corn; S adds ~11 bu/ac on S-short fields Source: Quinn 2020 Field Crops Res; Purdue/Iowa State corn-S trials · P response strongest below critical soil-test P. S response only where deficient (low-OM / sandy / eroded ground); none where S is sufficient. The technology package carries no yield claim of its own. Not a guarantee.

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Sized from your soil test

Does your soil actually need 3-18-18 Max?

Upload your soil test and we'll read every value on it. If your soil calls for 3-18-18 Max, you get the exact gallons and delivered price. If a different product would earn more first, we'll say that instead.

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

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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 3-18-18 Max is where your first fertility dollar should go.

What it is

Orthophosphate P-K + 1% Sulfur + Max Uptake

The 3-18-18 orthophosphate P-K starter with 1% sulfur (the '-1') carrying Max Uptake, designed to improve dissolved-state persistence and opportunity for nutrient acquisition.

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 3-18-18 max unlocks on your fields, not what's on the invoice.

Container	Delivered total	Shipping
275 gal tote	$3,000	freight included
3800 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*

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

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AgQuest

Finance your inputs through AgQuest and pay when the crop does. Apply online, or ask us how to get set up.

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

The research

The evidence behind 3-18-18 Max, 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 98.8 bu/ac versus 78.6 on the untreated check, a +25.7% lift on a replicated trial (6 treatments × 4 reps, 24 plots) 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

Banded starter phosphorus raised corn yield +5.2% on average across 474 U.S. comparisons, strongest below critical soil-test P, fading on high-P soils.

Quinn, Lee & Poffenbarger 2020: Field Crops Research 254
Banded 10-34-0 added +5–7 bu/ac corn on low-to-medium-P soils across 8 site-years.

NDSU A1851 (Endres, rev. 2022)
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.

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