Prebuy · ships October 1 This page ships now. Planning for fall? Prebuy 3-18-18 Regular in the Performance Series and lock your price. Nothing ships before October 1.

3-18-18 orthophosphate P-K

Liquid Fertilizers

3-18-18

Orthophosphate P-K Starter

Immediately-available P and K.

+5.2% corn from banded starter P Source: Quinn, Lee & Poffenbarger 2020: Field Crops Research 254, 474 US comparisons · Average across US trials; strongest below critical soil-test P and fades on high-P soils (74% of trials responded). Not a guarantee.

Order 3-18-18

Size Qty

Delivered pricing · –

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

Sized from your soil test

Does your soil actually need 3-18-18?

Upload your soil test and we'll read every value on it. If your soil calls for 3-18-18, 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 soil test yet? We'll mail you the kit, free reading included.

Buy a soil test · $30

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 is where your first fertility dollar should go.

What it is

Orthophosphate P-K Starter

A 3-18-18 orthophosphate P-K liquid with immediately-available phosphorus and potassium for early root growth and stand establishment. Strong on legumes and wheat.

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 unlocks on your fields, not what's on the invoice.

Container	Delivered total	Shipping
55 gal drum	$806	freight included
275 gal tote	$2,950	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*

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 online in minutes, or ask us how.

Apply with John Deere Financial →

AgQuest

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

Apply with AgQuest →

*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, 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)

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.

Documents