I have some dry pasture that has a brocston loam well drained soil and need to figure out what to plant on it. It used to be alfalfa ground but that drought has made it not worth messing with. i live in Utah at about 6400 feet. I want to find a plant that will grow well in this soil and cold environment with the least amount of moisture. I am considering these plants crested wheat, sainfoin, blue bunch wheat grass and teff grass. Are there any others i should consider? Do i need to do soil tests? Which will give me the most feed per acre?