TephraMax® Application Enhances Soil Health in Oregon Hazelnut Orchards

Tephracor trials of its TephraMax® soil amendment displays promising results from its application on several acres of hazelnut trees in Oregon. After one year, the application has significantly improved soil conditions, demonstrating the potential of TephraMax® to enhance soil health and optimize nutrient availability for long-term agricultural sustainability. 

Soil testing conducted following the application revealed a one-unit increase in pH, bringing it into an optimal range for hazelnut tree growth. Additionally, the concentrations of calcium (Ca) and magnesium (Mg), which were previously below optimal levels, have now reached sufficient levels to support tree nutrition. The application also improved potassium (K) and phosphorus (P) concentrations, though these nutrients were already present in high amounts due to prior use of conventional fertilizers. The additional K and P now in the soil are expected to reduce the need for future fertilizer applications, offering potential cost savings and environmental benefits. 

Furthermore, the basaltic andesite treatment increased levels of zinc (Zn) and copper (Cu), further enhancing the overall nutrient profile of the soil. Tephracor will continue to monitor the hazelnut trees throughout the 2025 growing season to assess potential yield improvements and overall foliage health.