CNC or whoever,

I converted another field to T&M this year, hesitantly. I say that because one of mine last year didn't do so well. It mainly had dog fennel, ragweed, or whatever the weed in the picture is below, which is actually of me seeding and fertilizing before cutting. That stuff doesn't seem to create the greatest thatch because it seems to have more stems than leaves/cover.

What is your experience with T&M in fields with this type of cover? I assume that next year, maybe I need to plant a millet or something more grass-like in the summer?

Thanks.