Comment by greedo
4 hours ago
Well the smaller a field, the larger proportion of end rows. And I was referring to end rows, not the entire field. A 5 acre field is pretty small, and my rough guess is that between end rows, rows shaded by trees and close to water sources, the loss could be pretty significant. Now if you're talking 500-1000 acres, end rows are nothing in the scheme of things.
> And I was referring to end rows, not the entire field.
As was I. 10% loss is considered typical, but that amortizes to only ~4% and ~2% for two and five acre fields respectively. So you suggest that 2% is "terrible" and "pretty significant", but I say it is essentially imperceptible from normal field variability. If you pick a random five acre plot out in the middle of a 100 acre field, there is a decent chance that it will 2% or more below the field average too.
Are you seeing this with corn or other crops? I don't have any experience with anything but corn and beans.