
Grower Testimonials
RhizoSorb, backed by testimonials from farmers in the field.
Better Efficiency. Improved ROI. Proven Technology.
RhizoSorb 8-39-0 is the Next Generation of Phosphorus FertilizerTM that is proven in hundreds of small plot and on-farm trials demonstrating consistent yield results and cost savings to row crop producers across North America.
Increased grower ROI per acre*
Per acre cost savings
Product trials
Corn
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Canola
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Canola
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Other
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Field-Proven Performance
See the Results: Performance Report Now Available
Discover the impact! Download our performance report to see how RhizoSorb® is transforming nutrient efficiency and driving results in the field.
Phosphorus Redefined
The foundations of RhizoSorb, the Next-Generation of Phosphorus Fertilizer TechnologyTM
Replace Conventional Fertilizers
RhizoSorb is a patentend technology integrated into dry-granule phosphate production to improve nutrient use efficiency.
Novel Active Ingredient
Our products are designed to minimize waste and maximize output. This means more produce for less cost, benefiting both your bottom line and the environment.
Soil Chemistry Approach
Surface interactions between RhizoSorb and phosphorus ensure plant availability by preventing soil tie-up and loss to the environment.
Optimal Nutrient Delivery
RhizoSorb offers a plant- driven release controlling the delivery of nutrients based on a chemical gradient established between the product surface and the soil-water solution where plant available nutrients are absorbed by the roots.
Trusted by Industry leaders worldwide
FAQs
From the field, growers often ask:
Rhizosorb 8-39-0 is a next-generation dry phosphate fertilizer that replaces MAP or DAP.
RhizoSorb technology is incorporated into traditional phosphate manufacturing, resulting in a finished granule that improves phosphate use efficiency, reduces input costs, and maintains crop yields.
Phosphate is adsorbed onto the surface of RhizoSorb® during granulation and keeps phosphorus from tying up in the soil when applied to fields.
RhizoSorb® controls the release of phosphorus based on plant needs rather than environmental conditions like MAP or DAP.
RhizoSorb® reduces soil tie-up and environmental loss by keeping more of what's applied available throughout the season.
In addition to years of product development and research by Penn State, hundreds of replicated, small plot and on-farm trials have been completed. Trials have been conducted across 18 states and over a period of 5 years.
RhizoSorb® reduces phosphate runoff by 78%. In addition, a third-party Life Cycle Assessment shows RhizoSorb® has a 45% lower GHG footprint per acre than traditional MAP.
RhizoSorb® can be blended and applied like any other dry fertilizer and the application method doesn’t affect performance.
RhizoSorb® is available now! To learn more about RhizoSorb®, contact Phospholutions to connect with a regional sales representative or reach out to your local ag retailer.
Although the cost per ton is higher, RhizoSorb® is cheaper per acre than MAP. RhizoSorb® is more efficient; therefore, we use less fertilizer to deliver the same amount of phosphate to the crop.
On average, growers save $5-7 per acre, and RhizoSorb® has demonstrated a yield increase of 3-5 bushels, generating an ROI of $20 per acre compared to MAP.
Unlike other products on the market, RhizoSorb® has reliable and consistent results across crops and soil types. It doesn't cost more to use, and no changes to retail or farm operations are needed. RhizoSorb® technology is not a biological or biostimulant but rather a soil chemistry approach to controlling the release of applied phosphates.
Growers can take advantage of RhizoSorb®'s Grower Guarantee Program. This program protects their revenue up to $40 per acre if yields are less than their 10-year APH or actual production history. Growers must apply a minimum of 200 acres of RhizoSorb® to corn or soybeans and enroll at Phospholutions.com.
Insights from Phospholutions
Local Support
Contact a RhizoSorb® representative by using the map to locate your territory representative. If you do not have a dedicated representative, kindly complete the contact form.

















































Learn Why Growers Trust RhizoSorb®
