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| 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. | |
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Potash on frozen ground?
