To maximize yield and reach your crop’s genetic potential, it is always time to assess things that work and things that may need to be improved. When determining your calcium and sulfur needs, there are a few areas where you will want to pay close attention when selecting a pelletized or granulated gypsum product.
What role does pellet size, uniformity and density play?
Pelletized gypsums vary greatly in granular uniformity. There are two ways to measure pellet size, the size granulation number (SGN) and uniformity index (UI). SUL4R-PLUS® products have an SGN of 265 or 2.65 mm that is designed to match other blended fertilizers to make the most homogeneous batch. Most products on the market today ship their product at a UI of 30, From 5 mm to 1.5 mm. SUL4R-PLUS® products have a UI of >50 that means that the large to small ratio is 4 mm to 2 mm or 50%. The larger the UI the more consistent the pellet size and the increased accuracy of blending and delivery, resulting in even feeding and improved ROI. This UI is so tight that it is one of a few products on the market that can be used effectively in air seeders. Further SUL4R-PLUS® products are designed to have a density of 60 pounds per cubic foot that also aids in maximizing blending and spread.
What roles does particle size play?
Pelletized calcium sulfate dihydrate “Pell Gyp” ingredients vary greatly in raw material particle size, tremendously impacting speed and completeness of reactivity. Particle size dictates how fast that nutrient goes into solution. Finer ground products will go into the soil solution faster than coarsely ground products, which may never fully solubilize but micronized products are the fastest of all. Coarse mined products target the 4 to 10 mesh size so that they can be spread on the field, and some pelletized mined product are ground to (85%) minus 100 mesh (150 microns) but SUL4R-PLUS® fertilizer is 95% less than 325 mesh (44 micron) or +60% increased surface area over 100 mesh materials. The increased surface area allows the SUL4R-PLUS® products to more quickly dissolve into the soil solution making the nutrition virtually immediately available to the crops and the Ca to SO4 bond causes the nutrition to be continually released throughout the growing season and longer.
How do SUL4R-PLUS® products compare?
SUL4R-PLUS® products are produced by a patented process that delivers the highest quality product on the market. Pellet uniformity and particle size matter when it comes to getting the most effective product for your plant’s health. SUL4R-PLUS® fertilizer is manufactured from one of the purest sources of gypsum in the world, making it dissolve and solubilize quickly to improve plant health and soil quality.
Call a SUL4R-PLUS®, LLC sales rep today to learn more about SUL4R-PLUS® products or visit www.SUL4R-PLUS.com for more information.