Harrell's PROfertilizer®

Harrell's Profertilizer

Exactly what you need, when you need it.

For more than 25 years, Harrell's has created unique, custom-blended fertilizers, each one formulated to meet the specific requirements of each customer.


Harrell's is dedicated to delivering the most effective products available. Our manufacturing facility utilizes the industry's most current technology and we use only the highest quality raw ingredients in each blend. Each Harrell's fertilizer mixture, some offering as many as 175 ingredient options, is double screened. Some even triple screened, to produce only the finest micro blends.

Made in the U.S.A.

Harrell's is proud to say our fertilizer is made in the U.S.A at our two fertilizer plants - in Lakeland, FL and Sylacauga, AL. Using only the highest quality raw materials, our fertilizer are mixed according to your specific needs or the needs of your region. 

POLYON®

Ready for more consistent, predictable and dependable feeding? The potential for reduced labor, disease and environmental impact? POLYON(r) controlled-release fertilizer delivers those benefits and many more. All of which translate into the results you care about most. Read more about how POLYON is right for you.

POLYON® ST

Don’t leave your turf’s health to chance! Polyon®ST is the predictable alternative to polymer coated sulfur coated urea (PCSCU). 

Features and Benefits of Polyon®ST
• Total release – no lock off compared to PCSCU
• More predictable release
• Higher nitrogen analysis than PCSCU
• More consistent/uniform particle size
• RLC technology – reactive layer coating – bonded with the urea particle means less damage at blending and/or application.
• Less leaching/loss during heavy rainfall events.
• Stronger coating integrity than PCSCU
• Release is dependent on temperature not water or microbial activity.

%N Nutrient Release Time (weeks)
Cool Climate** Hot Climate*
PCSCU 3-4 2-3
Polyon ST 44.5 6-8 4-6
Polyon 43 12-15 9-12
Polyon 42 16-20 12-16
Polyon 41 20-24 16-20

Data represents period over which fertilizer capsules became void of nutrient contents.
Color and turf Response will continue for several weeks after capsules have emptied.
*Data collected from Hot Climate was taken from IFAS Research Station in Ft. Lauderdale, Florida – Trial Initiated April 10, 2013
**Data collected from Cold Climate, was taken from NC State University, in Raleigh, NC. – Trial Initiated November 14, 2012

 

Spreader Service

Fertilizer Spreader TruckWhen you’re spreading fertilizer, you need to balance at least six factors – coverage, consistency, rate, weather, cost and timeliness. You make a significant investment when you purchase fertilizer. You can get the most for your money by making sure it’s spread properly.

Spreader truck GPSHarrell’s spreader trucks are equipped with GPS so we avoid wasteful overlaps and unintentional skips when we spread your fertilizer. The computer screen in the cab of the truck allows the driver to monitor the progress of the spread for proper  overlap and maximum efficiency.

Harrell’s fertilizer, starts with selective raw materials and is screened to achieve a consistent size guide number (SGN), so you can be confident that the the prill size is consistent and as a result, the spread is even. Then the spreader driver calibrates the spreader and maintains a consistent speed during the spread to apply  the amount of plant nutrients  per acre desired for consistent coverage and beautiful turf.

Harrell’s spreader trucks can hold 2-4 tons of fertilizer, depending on bulk density and spread roughly 30 acres per hour. The trucks are designed as a  low-impact, non-invasive tool for a labor-saving application of your fertilizer and are outfitted with smooth tread flotation tires for minimal impact to your turf.

Spreader TruckHarrell’s employs several highly experienced spreader truck drivers. Our employees will fill the spreader truck from a killibrew or if you have bulk bags, they can load from those just as easily. The process of filling the spreader truck is quite a site and our experienced drivers have the procedure down to a science to minimize waste.

Our drivers average 1-2 spreads a day during an 8-10 week period in the spring and a 6-8 week period in the fall. With the help of the Harrell’s dispatcher they’re able to serve customer needs in an efficient manner while still spreading hundreds of acres and travelling thousands of miles. We recommend you contact your Harrell's representative early to schedule your next application to ensure your fertilizer is applied during your preferred time frame.

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