If you want to please the landowner and help yourselves too think about planting alfalfa. The deer absolutely love it and he can have some super hay. It is costly and is high maintenance, but it is also very high in protein and can last for over five years. I bet if you bought the seed and fertilizer he would probably be willing to do the rest. It would be a win/win situation. I did this for my meadow (hay) field this past year. My neighbor cuts it on the halves, and helped me do all of the work for free!