Phosphorus Solubilizers
Help convert tied-up phosphorus in the soil into forms that plants can absorb and use.
K-Phos
Get More from Your P & K
K-PHOS™ helps make the phosphorus and potassium in your soil more available to your crop, which helps maximize your fertility dollars.
Unlocks P & K tied up in your soil.
Supports robust early root development and growth.
Improves ROI of your fertility program.
What it Does
Primary Function
Unlocks Tied-Up Nutrients and Opens Mineral Pathways
- Mineral solubilization
- Organic acid production
- Nutrient release processes
- Soil mineral activation
Pathways Opened
- Phosphorus release pathways
- Potassium mobilization pathways
- Mineral availability pathways
Field Impact
- Helps release tied-up phosphorus and potassium in the soil
- Opens blocked nutrient pathways limiting crop uptake
- Improves fertilizer efficiency and nutrient accessibility
- Supports long-term soil nutrient cycling
When to Use K-Phos™
K-Phos is a good fit when your soil tests show adequate phosphorus and potassium levels, but your crops aren’t responding the way you think they should.
If your SFA report indicates strong total nutrients but lower plant-available levels—or signs that nutrient movement is limited—K-Phos helps activate the team of microbes that will make those nutrients accessible.
Growers often use K-Phos in fields with tied-up nutrients, high soil variability, or where improving fertilizer efficiency is a priority.
Application
Crop Type
Application Rate
Timing
Method
All Crops
16–32 oz/acre
At planting
In-furrow
All Crops
16 oz/acre
Early vegetative
Drip or irrigation
All Crops
32 oz/acre
Pre-plant or side-dress
Broadcast with fertility program
Apply early in the season to establish strong root and microbe interactions. K-Phos is compatible with most liquid fertilizers and biological programs and works alongside your existing fertility strategy.
Primary Biology Groups
Potassium Mobilizers
Support the movement and availability of potassium to improve nutrient uptake and plant performance.
Mineral Unlocking Biology
Activate natural soil processes that release bound nutrients and improve overall nutrient availability.
Packaging Options
2.5 Gallon Jugs
250 Gallon Totes
Customer Reviews
BTI products are easy to use. They’re tank mix compatible, so our customers aren’t making separate passes to use the products. This has made BTI easy to incorporate into their businesses.
Nathan M.
Nebraska
BTI has really changed the way we think about the crop in general—whether that’s below-ground soil fertility, soil health, or above-ground plant health.
Zach M.
Nebraska, USA
We couldn’t keep competing the same way. We needed a whole new hand of cards. When you think microbial, that resets the whole paradigm for you.
Matt R.
Nebraska, USA
Uncover What’s Holding Your Farm Back
With Our Soil Functionality Analysis™ Report
Our proprietary Soil Functionality Analysis (SFA) Report isn’t just a soil test. It’s a roadmap to measurable gains in your fertility program. And your SFA tests are absolutely free. They’re our investment in your success.
Connect with a Local Expert
BTI partners with knowledgeable local dealers who understand regional soils and real-world farming challenges. Your local expert will help you turn soil data into action, align the right microbials with your goals, and support you throughout the season.