Yeah it’s a real problem for us hobbyists. I took careful records of a super good site, where I had lots of data points—not just one silver or button here or there but 300 flat buttons and 180 musketballs the first year. Then I recorded after each plowing how much came up. Consistently is was 66% each time after, compared to the first number. That tells me that we are getting FAR less than a third of what’s there if it’s not being plowed. Maybe only 10-15%. If you want the other 80-90% then you have to dig down to plow bottom depth across the entire site.
Done well once again with the hunting.
Enjoy the videos
Plowed fields are a hit/miss I have experienced over the years. (Even if they do it at all)
Seems that a 5" discing is all most will do, and hardly a deep plowing around my parts.
I do have a few that turn it, go sometimes the following season and there's little in the form of recoveries.
The next big turn it livened up the site like one had never been there.
So a turn could bury the finds with 6-10" of clean soils, or vice versa.
Example: I have one no till permission that produces beautiful coinage/relics in pristine condition.
I was for years trying for a plow, finally they tried potatoes, and I was over the moon at the possibilities of deep finds coming to the detectable level.
It killed the site, hardly a non-ferrous target to be found now.
From digging a few keepers every hunt, to a 1-2 signals type of thing.
I will go back in relic mode to see if I can get a few good ones after the harvest.