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Corn Seeding Rate Calculator

The Golden Harvest® Corn Seeding Rate Calculator is a data-based tool that helps farmers estimate the most economical seeding rate for individual hybrids and yield environments per acre. Calculations are based on two or more years of data per hybrid, collected at a subset of 70 or more trial locations each year, increasing the ability to predict optimal seeding rates for each hybrid.

To See the impact of replanting, simply:

  • Select a hybrid from the dropdown list.
  • Adjust grain price and seed cost sliders.
  • Hover over the plot line in the graph below for detailed information.
Download Results

The Corn Seeding Rate Calculator is being provided to you for information purposes only and for your private use in preparing your own calculations. While reasonable efforts have been made to ensure the accuracy and reliability of the information and formulas, no guarantee is given or responsibility taken by Syngenta for the accuracy of the calculations or the applicability to your particular circumstances.

SYNGENTA PROVIDES THIS THIS CORN SEEDING RATE CALCULATOR AND ANY RESULT THEREFROM AS-IS, WHERE-IS, WITH ALL FAULTS AND WITH NO WARRANTY WHATSOEVER, EITHER EXPRESS OR IMPLIED, INCLUDING ANY WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE. YOU ASSUME ANY AND ALL RISKS IN USING THE CORN SEEDING RATE CALCULATOR AND RELYING ON THE INFORMATION CONTAINED HEREIN. IN NO CIRCUMSTANCES SHALL SYNGENTA BE LIABLE FOR ANY DAMAGES WHATSOEVER, INCLUDING BUT NOT LIMITED TO LOSS OF PROFIT, LOSS OF BUSINESS, LOSS OF SAVINGS OR CONSEQUENTIAL DAMAGES, EVEN IF SYNGENTA HAS BEEN NOTIFIED AS SUCH.

Additional Resources

Learn more about corn seeding rates and crop management in the resources below.

Seeding Rate Management to Optimize Corn Yields

Yield potential of corn hybrids continue to increase yearly. Find out how to optimize seeding rate based on your field and hybrid characteristics.

Read More

Agronomy In Action 2025 Research Review

Discover trial results and actionable insights for corn and soybean crop management throughout the season.

Learn More

Let's Connect

Your local Golden Harvest Seed Advisor can help fine-tune seeding rate estimates even further and build planter seeding rate scripts with the GHX Fields digital agronomy platform.

Learn More

CONNECT

ABOUT

LEGAL

© Syngenta. Important: Always read and follow label and bag tag instructions; only those labeled as tolerant to glufosinate may be sprayed with glufosinate ammonium-based herbicides. LibertyLink®, Liberty® and the Water Droplet logo are registered trademarks of BASF. HERCULEX® and the HERCULEX Shield are trademarks of Corteva Agriscience LLC. HERCULEX Insect Protection technology by Corteva Agriscience LLC.

No dicamba may be used in-crop with seed with Roundup Ready® Xtend Technology, unless and until approved or specifically permitted, and no dicamba formulations are currently registered for such use at the time this material was published. Please see https://www.roundupreadyxtend.com/pages/xtendimax-updates.aspx for status updates. See product labels for details and tank mix partners. Golden Harvest® soybean varieties are protected under granted or pending U.S. variety patents and other intellectual property rights, regardless of the trait(s) within the seed. The Enlist E3® soybean, LibertyLink®, Roundup Ready 2 Xtend®, Roundup Ready 2 Yield® and XtendFlex® soybean traits may be protected under numerous United States patents. It is unlawful to save soybeans containing these traits for planting or transfer to others for use as a planting seed. NOT ALL formulations of dicamba, glyphosate or glufosinate are approved for in-crop use with products with XtendFlex® Technology. ONLY USE FORMULATIONS THAT ARE SPECIFICALLY LABELED FOR SUCH USES AND APPROVED FOR SUCH USE IN THE STATE OF APPLICATION. Contact the U.S. EPA and your state pesticide regulatory agency with any questions about the approval status of dicamba herbicide products for in-crop use with products with XtendFlex® Technology. Only 2,4-D choline formulations with Colex-D® Technology are approved for use with Enlist E3® soybeans. Enlist E3® soybean technology is jointly developed with Corteva Agriscience LLC and M.S. Technologies, LLC. The Enlist trait and Enlist Weed Control System are technologies owned and developed by Corteva Agriscience LLC. Enlist® and Enlist E3® are trademarks of Corteva Agriscience LLC. Roundup Ready 2 Xtend®, Roundup Ready 2 Yield®, YieldGard VT Pro® and XtendFlex® are registered trademarks used under license from the Bayer Group. More information about Syngenta corn products is available at http://www.biotradestatus.com. All trademarks are the property of their respective owners.

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