Amen to that Dave. I hate the fact that so much of that knowledge is being lost.
Was the feild level? Otherwise when the snow melts the fertilizer will run off no?
If this "bio-liquid fertilizer" is indeed just manure some of it may run off but probably very little. The dark color on the ground will melt the snow sooner than normal which will help retain it on the soil.
Apparently, Ag research does back up the old timers' suspicions.
A good snow will indeed add 2-4 pounds of N per acre.
We have always know this. The best oat crop is one that gets snowed on after it is up an inch or two. A few pounds of N is much more noticeable to us on a crop like this because we do not fertilize it otherwise.
I think that is why it was much more noticeable to the old timers. The ground was in much more need of fertilizer so a few pounds was much more noticeable to them.
I have also heard that corn will take up N out of the air in a thunderstorm.