Launched in 2024, RhizoSorb from Phospholutions puts an emphasis on phosphorus sustainability from start to finish. It’s stood out in its first year on the market, and readers of The Scoop have voted it as the New Product of the Year runner-up for 2024.
“RhizoSorb is the first major step in 60 years to make phosphate more efficient from a mine to end use perspective,” says Craig Dick, Phospholutions’ vice president of sales and marketing. “Phosphate rock is finite, and the ability to stretch a unit of phosphorus further in the soil has a significant impact to both manufacturers and farmers.”
RhizoSorb 8-39-0 is a dry fertilizer that serves as a replacement for conventional phosphates and increases the availability and efficiency of on-farm use.
“It has the same handling characteristics as MAP or DAP but is twice as efficient and therefore costs less per acre for the grower,” Dick says. “We’re applying slightly less per acre but seeing the same amount of phosphorus be taken up by the plant. That’s while reducing the grower’s cost per acre for phosphorus by 15% on average.”
Because it can be used in the same way as MAP or DAP, RhizoSorb doesn’t require a change in application for users.
“If the grower broadcasts his phosphorus fertilizer, he can still broadcast RhizoSorb. If he’s a strip tiller, he can just replace his MAP with our product,” Dick says. “It’s a very easy swap for not only the grower, but for the retailers and how they’re used to handling products. They don’t need additional equipment to coat a product. It’s seamless.”
A Long Time Coming
While the product’s launch came just as farmers were looking to cut back expenses, the research behind the technology has been in the works for some time — originally developed 30 years ago by a Penn State professor.
“Our CEO, Hunter Swisher, was an undergraduate in that professor’s class, and he licensed the patent for the technology,” Dick says. “Over the last nine years, we’ve raised over $38 million and done nearly 600 trials.”
Spending less per acre while increasing the absorption of phosphorus has translated into strong commercial success for RhizoSorb and also provides unique efficiencies for retailers.
“As we’ve thought about the grower and manufacturer, we thought just as much about the retailer. They’re the linchpin to making this all work,” Dick says. “When they compare RhizoSorb to MAP, they can achieve a 20% higher margin than with the higher volume of MAP, and they’re still able to pass on a 10% savings to the grower. Then, they’re handling 33% less product in their warehouse.”
He adds that as phosphorus continues to be the least efficient of the three macro nutrients used to grow our food, there’s more work to be done to bring RhizoSorb to farmers.
“Our goal is to make phosphate more efficient, and that comes with making it more cost effective,” Dick says. “We want to further expand our market reach and continue to work on finding the right retailers and distributors to partner with and bring this to market in a very thoughtful way.”
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