RE: making a food plot for west texas
You would probably be a lot better off spending your money trying to improve the native vegetation. High temperatures and modest rainfall will make it hard to grow most of the commercially available plot mixes. Results will be hit or miss, with more misses than hits. You would probably be a lot better off in the long run focusing on improving the native habitat. If you have some areas the deer are coming in to browse, a little fertilizer there never hurt.