Trace Adkins' Wife Files for Divorce

Lady don't love this country boy -- Trace Adkins' wife has filed for divorce ... after nearly 17 years of marriage.

Rhonda Adkins filed the docs in Tennessee, citing "irreconcilable differences."

According to the docs, the couple was married in 1997 and separated on Monday. They have three daughters (aged 16, 12, and 9). Rhonda wants primary residential custody as well as child support. She also wants alimony.

And this is interesting ... she wants to be named the sole beneficiary of Trace's life insurance policy.

It's unclear if the divorce is related to Trace's alcohol issues -- as we reported, the singer enrolled in rehab earlier this year after getting into a drunken fight with a Trace Adkins impersonator while on board a country music cruise.