Pro
At a 13 bu/ac response
13 bu/ac × $4.65 corn
= $60 per acre
less $5.82/ac for the package
500 acres =
$27,091
net impact, after the package pays for itself
Where your soil test is short of Zinc
Prebuy · ships October 1
These are prebuy products: order now to lock your price and your place in line. Nothing ships before October 1. Need product today? The buy-now 3-18-18 pages ship now →
Placed liquid starter
3-18-18 Performance Series
Prebuy · ships October 1 Order now, lock your price. Nothing ships before October 1.
The same job as your dry P and K, for a third of the bill. What changes between the levels is what rides along with the base, and what that answers on your soil test.
Not an AgriTec product Conventional dry P&K $111–$132/ac 
3-18-18 Regular $40/ac 
3-18-18 Pro Max $49/ac Pro and Max sit between Regular and Pro Max, each carrying one of the two packages. Compare all four levels →
Carries everything
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What's in this one
- Available starter fertility The starter itself The 3-18-18 foundation every tier is built on included
- The -1 sulfur 1% S not included
- Root-zone support Root zone not included
- Nutrient delivery Nutrient delivery not included
- Available starter fertility The starter itself The 3-18-18 foundation every tier is built on included
- The -1 sulfur 1% S 1% sulfur riding with the analysis. In every level except Regular included
- Root-zone support Root zone Pro Availability: formulated to support rhizosphere nutrient cycling and root-zone nutrient availability included
- Nutrient delivery Nutrient delivery not included
- Available starter fertility The starter itself The 3-18-18 foundation every tier is built on included
- The -1 sulfur 1% S 1% sulfur riding with the analysis. In every level except Regular included
- Root-zone support Root zone not included
- Nutrient delivery Nutrient delivery Max Uptake: designed to improve dissolved-state persistence and opportunity for nutrient acquisition included
- Available starter fertility The starter itself The 3-18-18 foundation every tier is built on included
- The -1 sulfur 1% S 1% sulfur riding with the analysis. In every level except Regular included
- Root-zone support Root zone Pro Availability: formulated to support rhizosphere nutrient cycling and root-zone nutrient availability included
- Nutrient delivery Nutrient delivery Max Uptake: designed to improve dissolved-state persistence and opportunity for nutrient acquisition included
Where this level pays
The return beside this level assumes your ground is actually short of what it corrects. This is the line to check on your soil test.
No published response threshold on file for this crop yet. Send us a soil test and we will read it with you before you buy up.
Regular adds nothing beyond N, P and K, so there is no soil-test threshold to clear. Where it pays is the bill.
Standard dry P and K
$111–$132/ac
3-18-18 Regular, placed
$40/ac
150-200 lb DAP + 200 lb potash at example retail (DAP $843/ton, potash $482/ton)
Short of it, the level pays. Not short of it, buy the level below and put the difference somewhere it works harder.
Regular · 3-18-18
In this jug
Showing this level. Change it:
Delivered tote · prebuy, ships October 1
$2,750
$10.00/gal · freight included
275 net gallons · covers ~69 acres
On the acre
$40/ac
delivered, at 4 GPA
The starting point
Return on the upgrade
- Regular 2.8× for every $1 spent cheaper than a standard dry program
- Pro $10.39 ROI for every $1 spent Pro Availability
- Max $8.79 ROI for every $1 spent Max Uptake
- Pro Max $11.80 ROI for every $1 spent Pro Availability & Max Uptake
The three upgrades are in dollars: the figure is what comes back for every $1 you put into the package on corn, on ground your soil test shows short of what it corrects. Regular is a multiple, not dollars, because it adds no nutrient beyond N, P and K and so has no response to return. Its figure is how much less it costs than a standard dry program. See how that is figured →
Prebuy it
Prebuy · ships October 1
Jugs, drums and totes, freight included
These are prebuy products: order now to lock your price and your place in line. Nothing ships before October 1. The price includes the container and the freight to your door. Running more than 2,000 gallons? Prebuy tankers are quoted to your delivery ZIP below.
Delivered prebuy pricing · ,
View cart (0) →Tanker loads: every level prebuys by the tanker too. Tankers are quoted rather than carted, priced to your delivery ZIP. Price my tanker delivery → or call (833) 247-4832.
This level is quoted rather than carted. Request a delivered price below, or call (833) 247-4832.
How many do I need?
8 totes at 4 GPA (550 ac covered)
$22,000 delivered · $44.00/ac
Totes are whole units, so this rounds up. The spare gallons cover point rows and refills.
What that returns on 500 acres
$55,800
documented response on corn
$35,500 ROI
kept vs a standard dry program
The response figure is this level's upgrade over Regular, on ground your soil test shows short of what it corrects. It is not a promise for every acre.
Not in this jug
Also available on this analysis:
What this level leaves on the table
, ROI for every $1 spent
On corn, the extra , an acre carries , an acre of documented response, on ground your soil test shows short of what it corrects.
Adding both is , a tote (, an acre), which makes this Pro Max. Same jug, same tank, same pass. The freight does not change either.
Already have 3-18-18 in the shed?
You don't have to re-buy the base. Both technology packages are sold on their own and go in with the 3-18-18 you already own.
This is the complete system, all three, on every acre.
You keep $150 a tote versus buying the two packages separately.
What it means on your farm
Put your acres in. See what the decision is actually worth.
Max
At a 11 bu/ac response
11 bu/ac × $4.65 corn
= $51 per acre
less $5.82/ac for the package
500 acres =
$22,591
net impact, after the package pays for itself
Where your soil test is short of Sulfur
Pro Max
At a 24 bu/ac response
24 bu/ac × $4.65 corn
= $112 per acre
less $9.45/ac for the package
500 acres =
$51,273
net impact, after the package pays for itself
Where your soil test is short of Zinc + Sulfur
Response figures are the documented response to correcting that shortage on ground that is short of it, at 4 GPA and current corn price. Where the nutrient is already adequate the documented response is little or none, so pull a soil test before you count on any of this. Not a projection or a guarantee, and results vary with crop, rate, timing, placement, soil, weather, and management. See the sources →
What your dollar buys
One 3-18-18 base. Four levels of technology riding with it.
The 3-18-18 base is the same in all four. The difference is which technology packages ride along in the jug.
A common dry P&K program runs $111 to $132 an acre. Every level below replaces it for $40 to $49, placed, in the pass you already make.
150-200 lb DAP + 200 lb potash at example retail (DAP $843/ton, potash $482/ton). AgriTec 3-18-18+ justification sheet, input cost comparison.
Regular
The starter itself
What rides in the jug
The 3-18-18 base analysis
The starter foundation every level is built on, with nothing riding along.
- Delivered
- $40.00/ac
- vs dry P&K
- saves $71–$92/ac
Pro
Pro Availability
What rides in the jug
Rhizosphere Support Technology
Formulated to support rhizosphere nutrient cycling and root-zone nutrient availability.
- Delivered
- $45.82/ac
- Over Regular
- +$5.82/ac
- vs dry P&K
- saves $65–$86/ac
Max
Max Uptake
What rides in the jug
Nutrient Delivery Technology
Designed to improve dissolved-state persistence and opportunity for nutrient acquisition.
- Delivered
- $45.82/ac
- Over Regular
- +$5.82/ac
- vs dry P&K
- saves $65–$86/ac
Most technology per dollar
Pro Max
Pro Availability + Max Uptake
What rides in the jug
Both technology packages
Rhizosphere support and nutrient delivery together in one jug, one pass.
- Delivered
- $49.45/ac
- Over Regular
- +$9.45/ac
- vs dry P&K
- saves $62–$83/ac
The second package is the cheapest thing on this page. The first technology costs $400 a tote; adding the second in Pro Max costs $250.
Costs are price arithmetic off the delivered tote card at 4 GPA. The soil test comes first: match the level to what your ground actually needs. No trial has compared the four levels against one another and nothing here claims one out-yields another. Dry P&K comparison uses AgriTec's example retail pricing; check it against your own quotes. Results vary with crop, rate, timing, placement, soil, weather, and management.
Build your tote
Start at $2,750 a tote. Add only what the acre needs.
You're not choosing between four products, you're starting with one and deciding what rides along with it.
Start here
AgriTec 3-18-18
The complete starter fertility foundation, on its own. 275 gallons delivered, covering about 69 acres. This is Regular.
$2,750/tote
$40.00/acre at 4 GPA · delivered
Then add only what the acre needs
Same jug, same tank, same pass. The freight does not change either.
Pro Availability
The root-zone package, formulated to support rhizosphere nutrient cycling and root-zone nutrient availability. Carries the -1 sulfur with it.
+$400/tote
+$5.82/acre
That makes it
Pro →Max Uptake
The delivery package, designed to improve dissolved-state persistence and opportunity for nutrient acquisition. Carries the -1 sulfur with it.
+$400/tote
+$5.82/acre
That makes it
Max →Both, together
Best valueEverything above, in one jug. Added one at a time they'd come to +$800/tote, taken together they're $150 less.
+$650/tote
+$9.45/acre
That makes it
Pro Max →The second option is cheaper than the first. One package adds $400 a tote. Going on to take both adds $650, so the second one only costs $250. Whichever package you were leaning toward, the other one is the least expensive thing on this page.
Prices are per 275-gallon tote, delivered. Running more than 2,000 gallons? Ask for a bulk quote →
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.
JD
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 → AQ
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 evidence
Why any of this is worth the extra dollar.
Here's the independent work behind starter phosphate and sulfur, what growers running it have said, and the labels, so you can check the claim rather than take it.
On the starter phosphate
+5.2% corn from banded starter P
Source: Quinn, Lee & Poffenbarger 2020: Field Crops Research 254, 474 US comparisons
Where it doesn't apply: Average across US trials; strongest below critical soil-test P and fades on high-P soils (74% of trials responded). Not a guarantee.
On the sulfur
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
Where it doesn't apply: 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.
These are independent findings about the nutrients and placement this product uses, not trials of AgriTec's finished blends. They describe where a response is likely, not what your field will do.
What growers said
Verbatim, from 9 states. Field experience, not a controlled trial.
MN · 2025
"I put on 3.18.18+ 10 days ago and the beans I treated have way out done the other beans, it's amazing."
TX · 2024
"That Alfalfa field turn around after the Adv Cal and 3-18-18+ went down its greener and fuller then I have ever seen it"
IN · 2023
"We used the 3-18-18+ on our beans and saw a significant yield increase. I want to use that again on my beans and run some hay and pasture ground with y'all as well"
Read it yourself
Always read and follow the label before use. Questions? Call (833) 247-4832.