Vance J. currently farms 2,400 acres and grows corn, beans, wheat, barley, and sugar beets in Breckenridge, Minnesota. In 2016, Vance decided to use FarmLogs Variable Rate Corn Seeding Prescriptions on 380 of his 925 corn acres.
“FarmLogs Seeding Prescriptions are simple. I can create a prescription really easily without having to put a lot of hard thought and struggle into it to get a map made.”
– VANCE J., MINNESOTA
Vance's Variable Rate Seeding Experiment:
Vance set up an experiment that would compare the yield and seeding rates of two strategically placed flat rate test strips in his field against the yield and seeding rates from the areas of the field that were seeded with a FarmLogs Variable Rate (VR) Seeding Prescription.
|Vance’s as-planted data (notice the two vertical green strips at a flat rate of 32k)|
Here's What Vance Discovered:
After harvesting, Vance wanted to compare his as-planted data to his yield data in order to evaulate the effectiveness of his Variable Rate Prescription. The scatter plot above (Yield vs. Seeding Population) represents the relationship between yield and population rates. Here the blue points represent the flat rate yield values and the green points represent the yield values under variable rate.
Almost immediately, it is easy to recognize that there is higher correlation between the green points than the blue points. This shows us that the relationship associated with the green points is what we would expect to see: higher yield being associated with higher planting rates. Even in the lowest performing sections of the field, the acres that were seeded with a VR Prescription produced higher yield while using less seeds than the flat rate test strips. This tells us that the FarmLogs Variable Rate Corn Seeding Prescription was able to accurately identify the difference in yield potential in the field and adjust the seeding rates accordingly lower than the variable rate seeded acres.
The graph above (Variable Rate Prescription vs. Flat Rate) shows us where the blue (flat rate) points would have fallen had they been planted under the VR Seeding prescription. The blue points with lower yield under flat rate seeding would have come in at a much lower seeding rate, on average, if they were planted with a VR Prescription. Had Vance used a VR Corn Prescription, he would have saved 3,595 seeds/acre on the lower-performing part of the test strip.
At an average cost of seed @ $296 per bag, FarmLogs Variable Rate Prescriptions would have saved the grower approximately $13.30 per acre.