When it comes to soybeans, success truly begins below the soil surface. A crop’s roots lay the foundation for season-long plant health and yield potential. Combining a leading inoculant like Optimize® FXC DS with the early-season weed control power of Authority® Supreme herbicide strengthens soybeans from the moment the seed hits the ground.
Optimize® FXC DS combines a highly effective dual-strain Bradyrhizobium with LCO Promoter TechnologyTM, a naturally occurring signaling molecule that accelerates the plant–microbe conversation responsible for early nodulation. By kick-starting this communication and providing highly effective rhizobia, soybeans can fix nitrogen sooner, even under stress or in variable soil conditions.
That early boost sets the stage for stronger performance throughout the season. By tapping into nitrogen earlier and more consistently, soybeans are better prepared to handle environmental challenges and maintain yield momentum.
Strong plants need a weed-free environment to reach their full potential. Research has shown that weed interference can reduce soybean yields by 35% with no weed control, and relying solely on a one-pass post-emergent program can still cost growers 3.3 bu./ac., or about $45 per acre in lost potential.1
Starting clean with a soil-applied herbicide is a proven way to protect yield potential before weeds can steal resources. That’s where Authority® Supreme herbicide comes in. As a pre-emergent herbicide, Authority® Supreme herbicide stops tough grassy and broadleaf weeds before they can compete for moisture, nutrients and sunlight, preventing early-season losses.
The extended, broad-spectrum control that Authority® Supreme herbicide delivers keeps the seedbed clean and allows soybeans to capture the benefits unlocked by Optimize® FXC DS more effectively.
Together, Optimize® FXC DS and Authority® Supreme herbicide elevate nitrogen within the plant and remove the competition early. The result is a more resilient crop, a stronger start, and a greater opportunity for higher yields.
Get sound agronomics working for you next season. New in 2026, both Optimize® FXC DS and Authority® Supreme herbicide qualify for up to 8% back through the FMC CashBack program.
To see how you can increase yields in your soybeans, visit https://ag.fmc.com/ca/en/soybeans-insight-west
1 107 fields in Southwestern Ontario were included in the trials and the average yield loss due to weed interference with no weed control was 35%. With some fields having extremely low weed pressure and showing 0% yield loss and other fields with very high weed pressure, causing 88% yield loss. Seven experiments conducted from 2017 to 2019 showed a 3.3 bushel/acre yield loss from relying on a total post-emergence weed control program. This resulted in a $45 per acre loss based on soybean prices during that same time period.
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