In this case, the jury was instructed that use of land "principally for recreational purposes, or as a hobby," does not qualify as an agricultural use. The jury's finding that the land failed to qualify as agricultural use prevented the land from qualifying as "open-space land" which would be entitled to favorable ad valorem tax treatment. We are asked to decide whether this instruction is erroneous. We hold that it is not erroneous. Accordingly, we reverse the judgment of the court of appeals, 823 S.W.2d 418, and remand this case to that court for further consideration.