3 1/2 weeks ago we planted our last food plot, about 3/4 acre. It was a grown up old hay field that had dog fennels and goldenrod about 6' tall. I cut the area up with an old disc a bunch of passes till the dirt was showing well on the ground. We had a Firmaseeder, sort of like a cultipacker with a no-till seeder on it spread the seed. I went in there yesterday and I don't think there was a single sprouted seed. The seed were tested, bought at the Co-Op. Any ideas what might have prohibited germination?