Optimum time to apply fall N varies

Crystal Reed
Oct 29, 2026
41 mins ago

1 of 2

To minimize loss, follow the three Fs of fertilizer management for the fall: 50 degrees, 4 inches in depth and falling, which is when fall nitrogen fertilizer should be applied.

IFT file photo

Graphic courtesy of University of Illinois

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Crystal Reed

Nitrogen application in the fall and winter might need to be delayed this year with the appearance of a Super El Niño.

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