Achieving Uniform Spread Patterns with Mid-Grade Sulf-N® Blends
August 10, 2017
- Density. The greater the mass of a particle, the more energy the spinner can impart on it. Heavy granules can achieve a wider spread pattern.
- Shape. Round granules encounter less friction than angular ones, which slide off the spinners. A sliding motion can absorb more energy from the spinner.
- Crush strength. Equipment operators determine adequate spinner speeds for fertilizer products based on their crush strength. Powerful spinners rotating at higher-than-adequate speeds can pulverize granules. For Sulf-N® ammonium sulfate, a spinner speed of around 700 RPM is advisable.
- Don't over-reach. Operating spinners at a speed of 850 RPM in an effort to create an 80-foot spread width pulverized the Sulf-N granules, resulting in a non-uniform pattern.
- Slow down. Slowing the spinners to 700 RPM allowed for an even distribution curve.
- Blend for a boost. Blending mid-grade Sulf-N granules with phosphorus and potassium sources extended the swath from 60 feet (with straight product) to 70 feet (with blends) without compromising the even distribution of nutrients. The angular, heavy phosphorus and potassium granules swept the Sulf-N the extra few feet.
Regards,Mercedes Gearhart Agronomy Manager, Honeywell