AGMRI Used to Manage Waterhemp


In Northern Illinois, several growers encountered weed alerts in their fields following post-herbicide applications during the growing season. These alerts were triggered at 842 growing degree units (GDU) around the V8 growth stage, and the growers were using Halex GT.


The challenge arose when scouting revealed that waterhemp was surviving the post-herbicide treatment. Failure to address this issue could have led to significant yield loss across multiple corn fields for various growers.

Uncertainty prevailed regarding whether the weeds were regrowing due to slow canopy closure, residual herbicide failure, or other factors, especially considering the drought conditions in 2023. Growers in the area were concerned with reduced yields.


Timely AGMRI weed alerts pinpointed the presence of surviving waterhemp. After ground truthing, you could see that while other weeds were dead or dying, the waterhemp remained unphased. Armed with this knowledge, the grower decided to switch to a different herbicide to effectively control the waterhemp. Additionally, they proactively modified their post-herbicide programs to improve their weed control.


The results have been remarkable. Improved yields due to more effective weed control and reduced long-term weed management costs all contributed to a positive return on investment. Moreover, by preventing the waterhemp from going to seed, the issue of creating a weed seed bank was successfully mitigated. With plans to use the more effective herbicide from the start, weed escapes are expected to be minimized, ensuring higher productivity and profitability for the growers in the years to come. Not everyone has issues with waterhemp, but AGMRI is helping retailers and growers find issues.


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Yield Forecast

Understand where your corn yield is based on the current state of the crop. As the season unfolds, see how it is having an impact on your final yield.

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Powered by years of Nitrogen research at the University of Missouri, our corn Yield Loss analytic, powered by NVision Ag, gives insight into potential yield loss due to Nitrogen deficiency. Optional analytic for nitrogen management.

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Not all areas of your fields perform the same and low NDVI doesn’t necessarily mean there is anything you can do to fix it this year. Underperforming Area alerts you to the fields and areas of the fields that are performing below their historical potential. This will allow you to quickly find those fields and areas and make adjustments to get them back on target and protect yield.

Nutrient Deficiency

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As the crop grows, it can tell us more of what is wrong with it. This analytic finds the fields and areas of the fields where there is a nutrient deficiency so that issues can be addressed before grain fill.

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In conjunction with the Thermal Stress, Disease Stress alert takes into account weather information to more precisely indicate the type of stress impacting the crop.

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Using our thermal imagery, AGMRI can detect elevated heat patterns of the crop that indicate crop stress.

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Know what fields and areas of the fields have weeds. With machine integration or based on planting date, be alerted to what fields have weeds that may be impacting yield.

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Low Emergence

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Notification of what fields and areas of the field have poor emergence.

Stand Assessment

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