Planting After Roundup?

What are your thoughts about planting grasses after killing a field with roundup?

I’ve got a field I’d like to take a May 1st cut, kill with roundup and the put on Teff around May 15.

Would consider doing the same come this fall after whatever second cut we get, kill with roundup and plant Timothy a few weeks later.

Anyone have any thoughts and/or success doing this?

Thanks!
Bill

Planting After Roundup?