Controlled-Release Fertilizers

Sustained nutrition that works with your schedule. Advanced polymer-coated fertilizers for consistent, long-term plant performance.

Our CRF Products

18-6-12 + Minors CRF

Primary Product: Our flagship controlled-release fertilizer delivers balanced nutrition over 4-8 months depending on soil temperature. Perfect for any application requiring sustained nutrition.

Guaranteed Analysis

Total Nitrogen (N): 18%Available Phosphate (P₂O₅): 6%
Soluble Potash (K₂O): 12%Magnesium (Mg): 1%
Sulfur (S): 6%Boron (B): 0.024%
Copper (Cu): 0.04%Iron (Fe): 0.38%
Manganese (Mn): 0.056%Molybdenum (Mo): 0.007%
Zinc (Zn): 0.056%Boron (B): 0.024%

Release Longevity by Temperature

Soil TemperatureLongevity (Months)*
60°F8
70°F6
85°F4

*Longevity refers to release of 80% of nutrients

Custom Blended: 14-6-9

Blueberry Solution: This custom 14-6-9 formulation was developed by blending our 18-6-12+ CRF with 8-6-6 granular fertilizer, specifically engineered for blueberry crop performance.

Guaranteed Analysis

Total Nitrogen (N): 14%Available Phosphate (P₂O₅): 6%
Soluble Potash (K₂O): 9%Magnesium (Mg): 1.44%
Sulfur (S): 7.76% 

Field Research Results

Our field trial demonstrated visual observation of significant improvement in blueberry production, plant health, and nutrient efficiency compared to standard fertilization programs.

Key Research Findings:
  • Optimized immediate + sustained nutrient delivery
  • Improved fruit quality and yield consistency
  • Enhanced nutrient uptake efficiency
  • Reduced environmental nutrient loss

Download Paper – Coming Soon

Why Choose Our CRF Technology

Extended Release

Single application provides 4-8 months of consistent nutrition, reducing labor costs and application frequency.

Temperature Responsive

Polymer coating responds to soil temperature, releasing nutrients when plants need them most during active growth periods.

Weather Resistant

Protects against nutrient leaching from heavy rainfall and reduces volatilization losses compared to quick-release fertilizers.

Balanced Nutrition

Complete NPK plus essential micronutrients in every granule, ensuring consistent plant nutrition throughout the release period.

Custom Blending

Combine with quick-release granular fertilizers for immediate + sustained nutrition tailored to your specific crop requirements.

Consistent Performance

Eliminates feast-or-famine nutrient cycles, providing steady nutrition for optimal plant growth and development.

CRF vs. Standard Fertilizers

Feature Our CRF Products Standard Granular Fertilizers
Release Duration  4-8 months sustained release 2-4 weeks, requires frequent reapplication
Application Frequency  1-2 applications per season 4-8 applications per season
Nutrient Loss Protection  Polymer coating prevents leaching High risk of leaching and volatilization
Labor Efficiency  Significantly reduced labor costs High labor requirements for frequent applications
Micronutrient Package  Complete balanced micro package Often requires separate micro applications
Custom Blending  CRF + quick-release combinations Limited blending options
Temperature Response  Releases more when plants are actively growing No temperature responsiveness

Ready to Enhance Your Nutrition Program?

Get pricing, availability, and application recommendations for your specific crops and conditions.

 

Questions? Call our team for personalized recommendations: [864-905-0842]