near Mtl, QC | Buckheart2 - 11/22/2025 07:37
We used to wait for a late winter or early spring day after a warm up and then subsequent freeze to spread potash in prior years. The little bit of frost on top holds the machine up so you aren’t cutting ruts or compacting. The ground will very soon unthaw and potash will be able to work its way in with spring rains. Maybe shoot for a frosty morning with warm afternoon temps after the frost is mostly out and no big rains forecast. Might be easier to achieve this in Illinois than in Canada.
We switched back to fall apps for cover crop application purposes and because we thought chlorine from potash was hurting early soybean growth and emergence.
I’ve always wanted to try some in season dry potash spread after emergence but never have.
I do question the availability of fall applied potash 8 months later. I think our soils tie some up.
Last year was the first year that I fall applied potash in strip and was worried about availability next crop. Tissues tests showed no potash deficiency on all soybean and corn tissus test so I am kinda not to worried about that point.
Maybe I was mistaken about what I meant by frozen ground. I meant that these couple of days, ground freeze at night, but not frozen. Just a bit of frost on the top to hold the tractor and not compacting.
Next week forecast is warmer without night freeze so ground will go back to mud again. |
Potash on frozen ground?
