"Lew Hodgett" wrote

As suggested, tape bottom and open end of crack closed, then pour in epoxy
and clamp shut.

I would add one more thing to that.

LIGHTLY clamp it shut.

Because that will induce less stress in the wood structure that caused it to
split in the first place, and that epoxy has the characteristic that it
requires less clamping force for a good bond. Clamping too tightly is a
fairly common mistake for people who usually work with yellow glues that use
epoxy for the first times. If you clamp epoxy too hard, you actually starve
the joint of the epoxy needed to bond the two pieces.
--
Jim in NC