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Unlock the Farmer’s Toolbox and Learn About NDVI Maps

November 29, 2010
By: Margy Eckelkamp, Director of Content Development, Machinery Pete

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Reaching into the farmer’s toolbox reveals tips, technology, and tools to take your yields in the next level. In episode 6 of Corn College TV, Farm Journal Associate Field Agronomist Missy Bauer details the advantage of NDVI maps to fine-tune your corn production.

NDVI stands for Normalized Difference Vegetation Index (NDVI) and measures the vegetative state across your fields.

“NDVI Great tool for the farmer’s toolbox to gain more detailed information from our fields,” Bauer says. “It gives an in-season look at crops rather than wait to see maps from the yield monitor.”

As Bauer referenced, NDVI correlates with calibrated yield maps. And there are three ways to gather this type of information:

·         Aerial images with airplanes

·         Satellite

·         Sensors on ground machines

“The resolution can vary, and what type you choose is dependent on timing,” Bauer says. “We’ve used NDVI as a scouting tool and troubleshooting with nutrient deficiencies. One map showed us that an anhydrous thank was running low through a pass and the correct rate wasn’t applied. We can also find wheel tracks from heavy equipment such as central fill planters.”

But she also says it’s important to ground truth the images by going out into the field yourself. With this information, farmers can fine tune management zones or help develop management zones.

Learn more in Episode 6 of Corn College TV.

episode8NDVI

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