StrmChzr
It is counter productive to spray before planting. Just remember that you want to spray BEFORE the weeds are 4" tall.
Last year - I sprayed mine 4 weeks after planting (6/19) - this is what it looked like:
I sprayed again 5 weeks later - Around July25th - this is what it looked like then:
I did not spray again - and by the end of the growing season they looked like this on 9-19:
The year after the first RR Soybean plot - the soil is still quite bare - and perfect for spring planting clover and rolling it in - or to just disk and plant them again.
FH