One of our many calibration trials this year is comparing bare soil imagery (enhanced color, green NDVI, and synthesized natural color) to grid soil samples to see if we can predict soil OM (and possibly other soil nutrients) levels. This would allow farmers to decrease the number of soil samples they need to take, but still give them a high level of precision management needed to make variable rate fertilizer applications, variable rate herbicide applications, or variable seeding rates.
Enhanced Color survey of bare soil.
Green NDVI survery of bare soil.
Synthesized natural color survey of bare soil.
Once we get the grid soil sample results back we'll run some statistical analyses to compare the soil chemical analyses to these three types of imagery along with soil conductivity measurements in some additional fields. After harvest we will fly the fields again to run additional comparisons to evaluate if there are any seasonal changes to our data.