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Protecting Your Soybean Yield Potential at R3


As your soybeans move into R3 (beginning pod), they enter a critical window for setting yield. The crop is rapidly building pods, and every pod retained directly impacts your bottom line. At this high-demand stage, protecting your crop goes beyond just choosing the right fungicide—it’s about ensuring complete canopy coverage and giving the plant the nutritional support it needs to thrive under summer stress.


To get the most out of your R3 spray, we recommend pairing your fungicide with MasterLock® adjuvant and MAX-IN® Ultra ZMB® Plus micronutrient.


Why R3 Matters


During R3, dense canopies and peak environmental stress can limit how effectively your fungicide works. If the spray can't penetrate deep into the canopy or bounce-off occurs, you lose valuable protection where disease strikes first.


Combining your fungicide with targeted spray technology and plant nutrition helps secure your investment and protect your crop's potential.


Maximize Your Fungicide with MasterLock®


Getting your fungicide down into a thick soybean canopy isn't easy. MasterLock® acts as a performance multiplier for your spray application by:


  • Improving Canopy Penetration: Drives spray droplets deeper into dense foliage for superior top-to-bottom coverage.


  • Reducing Drift & Bounce: Enhances droplet retention on the leaf surface so more product stays where it’s needed.


  • Maximizing Your ROI: Ensures broad, uniform coverage so you get the full value out of every gallon applied.


  • Easy Tank Mixing: Seamlessly integrates with a wide variety of standard soybean fungicides.


Fuel Active Pod Development with MAX-IN® Ultra ZMB® Plus


Reproductive growth places high metabolic demands on the plant. Adding MAX-IN® Ultra ZMB® Plus to your tank mix delivers key micronutrients during peak demand:


  • Targeted Nutrition: Provides essential Zinc, Manganese, and Boron to support plant vigor, flower retention, and pod development.


  • Patented Uptake Technology: Formulated for rapid absorption through the leaf surface so nutrients go to work immediately.


  • One-Pass Convenience: Easily mixes into your R3 fungicide trip, saving you time and fuel.

The Bottom Line


Your R3 application is one of the most critical yield-building passes of the season. By combining your preferred fungicide with MasterLock and MAX-IN Ultra ZMB Plus, you ensure better coverage, stronger plant health, and maximum protection when it counts most.


Ready to Plan Your R3 Application?


Reach out to your Centra Sota crop advisor today to discuss tank-mix options tailored to your fields.

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