I would call their office and ask, that will be your best source of information.
If I had to guess they don't just have one big amount of prospective students that they can handle. They probably ration for so many new students, and set aside an amount for on campus transfers, and even off campus transfers. Again just give them a call and ask.
And if they are full, try getting into Ag Economics, the degree plan is basically the same except for something like 15 hours so if you can get into that, it would be easy to transfer down the road.