Strip-tillers looking to improve their phosphorous (P) efficiency tuned into a recent webinar hosted by Phospholutions.

Craig Dick, Phospholutions vice president of sales and marketing, and Brian Reineke, Phospholutions director of agronomy, detailed the challenges of P availability, and how their company’s RhizoSorb fertilizer technology can decrease application rates by up to 50% while preserving yield.

Conventional P gets tied up in the soil almost immediately after application, and little remains plant available throughout the season, Reineke says.

“Just like nitrogen and sulfur, phosphorous is needed throughout the growing season for maximum yields,” Reineke says. “We need to focus on ways that will help drive yield responses later in the season. Season long supply of phosphorous is imperative for maximum corn yields.”

RhizoSorb can help solve P uptake efficiency problems, Reineke says. As illustrated in the graphic below, it releases P based on a chemical gradient rather than environmental conditions.

“It’s a dry granular material,” Reineke says. “Its properties are comparable to conventional MAP, but it has a 38% lower salt index than MAP. RhizoSorb reduces P runoff potential by 58% and GHG emissions by 51% per acre. It decreases the cost of phosphates on a per acre basis by 10-15%, and with RhizoSorb, growers use 50% less P per acre while preserving or improving yields."

RhizoSorb has been tested across 200 trial locations in 14 states. The results from trials in Iowa and Nebraska, comparing RhizoSorb to grower standard practices (GSP) are showcased in the images below.

Watch a full replay of the webinar in the video below!

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