Polyworx® Polymer-Coated Fertilizer
Polyworx is Howard Fertilizer’s proprietary polymer-coated, controlled-release fertilizer technology, engineered to deliver nutrients gradually over an extended period instead of all at once.
A durable polymer coating surrounds each fertilizer granule. It regulates nutrient release into the soil, helping turf, ornamental, and agricultural professionals provide more consistent nutrition while reducing the potential for nutrient loss through leaching.
With controlled-release nitrogen and potassium options, multiple release periods, and the ability to incorporate Polyworx into custom fertilizer blends, you can tailor your nutrient program to your turf, property, growing conditions, and application schedule.
Built for demanding professional applications across the Southeast, Polyworx provides controlled-release nutrition for golf courses, sports turf, commercial landscapes, and other professionally managed turf and ornamental environments.
How Polymer-Coated, Controlled-Release Fertilizer Works
Traditional soluble fertilizers make nutrients available relatively quickly after application. Polymer-coated fertilizer takes a different approach.
Polyworx surrounds the nutrient source with a durable, semipermeable polymer coating. After application, water moves through the coating and dissolves nutrients inside the granule. Those nutrients then move gradually through the membrane and into the soil over a controlled period.
By regulating that release, Polyworx extends nutrient availability beyond the initial application and helps provide a steadier source of nutrition to the root zone.
Different Polyworx products and coating specifications can provide different nutrient sources and release periods. That flexibility allows Howard Fertilizer to incorporate controlled-release nutrition into programs designed around the specific needs of a property, crop, climate, or growing environment.
Why Professionals Choose Polyworx
Instead of delivering a large amount of soluble nutrition at once, Polyworx meters nutrients into the soil over time. This controlled release helps support more consistent turf growth, color, and plant performance throughout the feeding period.
Reduced Nutrient Leaching
Controlled nutrient release helps keep more fertilizer available when plants can use it. By limiting the amount of soluble nutrient present in the soil at any one time, Polyworx can help minimize nutrient loss through leaching—an especially important consideration in the sandy soils common throughout the Southeast.
Fewer Applications
Extended nutrient release can reduce the need for repeated fertilizer applications compared with programs that rely entirely on quickly available nutrient sources. Fewer applications can mean less labor, equipment use, and disruption across large professionally managed properties.
Flexible Nutrient Programs
Polyworx can be customized to your needs. Controlled-release nitrogen and potassium components can be incorporated into custom fertilizer blends to help meet specific nutrient requirements and performance goals.
Working with Howard Fertilizer's Accublend™ capabilities, turf, ornamental and agricultural professionals can build a fertilizer program around the nutrients, ratios, and release characteristics their property actually needs.
Controlled-Release Nitrogen and Potassium
Polymer-Coated Urea
Provides controlled-release nitrogen to support sustained turf growth and color. Polyworx 44, for example, is a 43-0-0 polymer-coated urea designed to provide a 120-day release.
43-0-0120-day releasePolymer-Coated Sulfate of Potash
Provides controlled-release potassium for programs focused on root development, wear tolerance, plant strength, moisture management, and overall turf performance. Polyworx SOP90 is a 0-0-47 polymer-coated sulfate of potash designed to provide steady potassium release over approximately 90 days.
0-0-47~90-day release
Controlled-Release Fertilizer for Golf Courses, Professional Turf, and Agriculture Operations
Maintaining high-quality turf means balancing appearance and performance with labor, application schedules, weather, and nutrient efficiency.
Polyworx gives golf course superintendents and professional turf managers another way to control that balance.
Available in formulations appropriate for professional turf applications, including greens-grade and turf-grade options, Polyworx can be incorporated into fertility programs for:
- Golf course greens, tees, fairways, surrounds, and bunkers
- Athletic fields and sports turf
- Municipal and commercial properties
- Professionally managed landscapes
- Turf farms
- Turf and ornamental programs
- Agriculture and specialty crops
For golf courses in particular, controlled-release fertilizer can help maintain more consistent nutrition between applications while reducing the peaks and drop-offs associated with relying solely on quickly available fertilizer sources.
Built for Conditions in the Southeast
Polyworx was developed with those conditions in mind. Its durable polymer coating controls nutrient movement from the granule, helping turf and ornamental managers maintain a more predictable feeding program while minimizing the potential for leaching.
Polyworx controlled-release technology can be incorporated into a nutrient program designed around your property, application schedule, growing conditions, and performance goals.
Polyworx Frequently Asked Questions
What is polymer-coated fertilizer?
Polymer-coated fertilizer is a type of controlled-release fertilizer in which a nutrient source is surrounded by a polymer membrane. The coating regulates how quickly nutrients move from the granule into the surrounding soil, extending nutrient availability over a defined period instead of making the full nutrient load available immediately after application.
Is controlled-release fertilizer the same as slow-release fertilizer?
The terms are often used interchangeably, but controlled-release fertilizer more specifically refers to fertilizer engineered to regulate nutrient release through a defined mechanism, such as a polymer coating. Polyworx is Howard Fertilizer’s polymer-coated controlled-release fertilizer technology.
How long does Polyworx fertilizer last?
It depends on the Polyworx product and formulation. Different coatings and nutrient sources are designed for different release periods. For example, Polyworx 44 polymer-coated urea provides a 45-day release, while Polyworx SOP90 provides controlled potassium release over approximately 90 days. A Howard Fertilizer representative can help determine the appropriate formulation and release profile for your program.
Does Polyworx contain nitrogen or potassium?
Both are available within the Polyworx line. Polyworx includes polymer-coated urea products for controlled-release nitrogen as well as polymer-coated sulfate-of-potash products for controlled-release potassium. These components can also be incorporated into custom fertilizer blends.
Can Polyworx be used in agricultural applications?
Polyworx controlled-release nitrogen and potassium can be incorporated into agricultural fertility programs, with formulation and release characteristics selected based on crop, soil, climate, and nutrient requirements.
Can Polyworx be custom blended?
Yes. Polyworx components can be incorporated into Howard Fertilizer’s custom fertilizer programs, allowing nutrient ratios and controlled-release components to be selected around the needs of a particular property or growing program.
Can controlled-release fertilizer help reduce nutrient leaching?
Controlled-release fertilizer can help reduce the potential for nutrient leaching by regulating how quickly soluble nutrients become available in the soil. Rather than making the entire nutrient load available at once, Polyworx releases nutrients gradually over its specified release period.
Is Polyworx organic?
Polyworx is a polymer-coated mineral fertilizer and is not OMRI-certified. For organic-compliant nutrition options, explore Howard Fertilizer’s OMRI-certified fertilizer products.
Build the Right Polyworx Program for Your Property
Talk to your Howard Fertilizer representative about putting controlled-release Polyworx nutrition to work for your turf, landscape, or agricultural operation.