A controlled-release fertilizer is a nutrient source (often urea or sulfate of potash) coated by a polymer layer, regulating gradual nutrient release into the soil. Polymer-coated controlled-release fertilizers are pivotal in lawn and landscape, and golf to offer a balanced and efficient approach to plant nutrition and soil fertility management.
High Performing, Precise & Durable Controlled-Release Urea
TTRU™ Trusted Time-Release Urea is a controlled-release fertilizer developed with a PROVEN enhanced efficiency technology, innovatively engineered with a precise and durable coating for outstanding and reliable performance. Developed for the commercial and residential lawn care, golf and sports turf industries.
PCU: Polymer Coated Urea
Longevities: 60, 90, 120, 180 day release
Product colors may vary.
Coated Ammonium Sulfate for Steady Nutrition, Reduced Salt Burn, and Improved Handling
TTRN™ – Controlled-Release AS (Ammonium Sulfate) is a high-performance ammonium sulfate fertilizer that delivers consistent nutrients over time while reducing the risk of salt burn and nutrient loss. Its moisture-resistant coating improves storage and handling, lowers application frequency, and supports eco-friendly, cost-effective turf and ornamental care.
PC-AS: Polymer Coated Ammonium Sulfate
Longevities: Up to
45 day release available
Product colors may vary.
Extended Phosphorus Release for Sustained, Efficient Plant Nutrition
TTRP™ – Controlled-Release DAP (Diammonium Phosphate) is an advanced fertilizer engineered to deliver a balanced and sustained supply of phosphorus and nitrogen—two critical nutrients for vigorous plant development. Unlike conventional DAP, TTRP™ features a controlled-release coating that extends phosphorus availability over time, promoting stronger root growth and long-lasting plant health. This slow, steady nutrient delivery not only enhances performance but also reduces the need for frequent applications, saving time and improving efficiency for turf and ornamental professionals.
PC-DAP: Polymer Coated Diammonium Phosphate
Longevities:
90 day release
Product colors may vary.
Controlled-Release Sulfate of Potash for Stress, Recovery, and Nutrient Efficiency
TTRK™ – Controlled-Release SOP (Sulfate of Potash) is a premium potassium fertilizer designed to support turf recovery and resilience, especially after aerification or during periods of environmental stress such as drought, heat, or disease. Formulated with a controlled-release coating, TTRK™ delivers a steady supply of potassium and sulfur—two essential nutrients that strengthen root development, enhance turf vigor, and promote long-term plant health. Its gradual nutrient release not only improves performance but also reduces application frequency, helping turf professionals save on labor, fuel, and equipment wear.
PC-SOP: Polymer Coated Sulfate of Potash
Longevities: 90
day release
Take Your Landscapes & Ornamentals from Ordinary to ULTTRA
ULTTRA NPKs™ controlled-release homogenized fertilizers set a new standard in landscape and plant nutrition. Featuring a 100% coated, homogeneous formulation enriched with micros, this granular fertilizer delivers precisely balanced nutrients for exceptional plant and ornamentals health. With optimized NPK ratios, these are perfectly crafted for nursery and ornamental applications. Coated with the latest advanced controlled-release fertilizer technology, ULTTRA NPKs products offer flexible nutrient releases that ensure consistent feeding, supporting robust growth and vivid, vibrant landscapes. Whether you’re a professional in landscape, golf or sports turf management or nursery, ULTTRA NPKs are the ultimate solution for cultivating superior landscapes with ease and efficiency.
PC-NPK: Polymer Coated Homogenized NPK
Longevities: 90 day release