Where Lower Use Rates Meet Higher Performance

More Than a Starter Fertilizer

Today’s growers expect more from every application. Rising input costs and increasing pressure to maximize efficiency mean every gallon needs to work harder. 

Unlike conventional phosphorus fertilizers, CHALLENGE is formulated to maximize nutrient availability and uptake, allowing growers to achieve exceptional performance at lower application rates across row crops and specialty crops.  

Whether applied in-furrow, foliar, or by fertigation, CHALLENGE delivers nutrients where they’re needed most. 

Advanced Phosphorus Technology

The foundation of CHALLENGE is Potassium Tri-Poly Phosphate (KTPP)—a premium phosphate compound used in other industries as a powerful chelating agent. 

KTPP consists of three orthophosphate molecules bonded together with potassium, creating a highly efficient phosphorus source. This unique chemistry helps convert phosphorus into forms that are more readily available for plant uptake. 

When combined with nitrogen in the CHALLENGE formulation, nutrient movement and translocation throughout the plant are further enhanced, helping crops utilize both phosphorus and potassium more efficiently. 

The result is a highly effective phosphorus fertilizer that allows growers to achieve outstanding results with lower use rates. 

Solubility with Homogenized Humic Acids 

CHALLENGE also contains 100% homogenized humic acids, ensuring complete solubility in tank mixes. 

Humic acids naturally sequester nutrients, helping improve their movement through both roots and leaf tissue. 

This contributes to: 

• Improved nutrient translocation 

• Better soil nutrient availability 

• Enhanced root uptake 

• Increased foliar absorption 

The result is a fertilizer that works efficiently regardless of the application method. 

A Proven Winner in the Field

Performance isn’t measured in the lab alone—it’s proven in the field. 

CHALLENGE has been incorporated into multiple award-winning crop production programs, including: 

• 1st Place – 2022 Commodity Classic, Strip, Minimum, Mulch & Ridge-Till Irrigated Corn | North Carolina  

• 1st & 3rd Place – 2022 Northampton County Cotton Yield Contest | North Carolina 

• 3rd Place – 2022 Martin County Peanut Yield Contest | North Carolina

 These award-winning programs incorporated CHALLENGE alongside other complementary fertility products through in-furrow and in-season foliar applications. 

Key Takeaways

• Advanced Potassium Tri-Poly Phosphate (KTPP) technology 

• Lower use rates with exceptional nutrient efficiency 

• Improves phosphorus and potassium uptake 

• Humic acids enhance nutrient movement through roots and foliage 

• Suitable for row crops and specialty crops 

• Proven success in award-winning crop programs 

Frequently Asked Questions

What makes CHALLENGE different from other phosphorus fertilizers? CHALLENGE combines Potassium Tri-Poly Phosphate (KTPP), organic acids, and homogenized humic acids to improve phosphorus availability and nutrient uptake while allowing for lower application rates. 

What is Potassium Tri-Poly Phosphate (KTPP)? KTPP is a premium phosphate source consisting of three orthophosphate molecules linked with potassium. It helps improve phosphorus availability and supports efficient nutrient movement within the plant. 

Can CHALLENGE be used on specialty crops? Yes. CHALLENGE is suitable for a wide range of row crops and specialty crops, including vegetables, orchards, vineyards, and other high-value crops. 

Why does CHALLENGE require lower application rates? Its advanced formulation improves nutrient availability, uptake, and translocation, allowing crops to utilize phosphorus and potassium more efficiently than conventional formulations.