RE: What exactly grew?
Pic 1 is definitely turnips. Pic 2 looks like it may be oats.
Did you soil test, lime and fertilize? What kind of soil prep did you do? August is a horrible time to plant anything. The turnips should have gone in the ground in late June. The chicory and rape, September. I'd burn off those leaves and frost seed a clover/chicory mix in this spring.