It is a condition of the afforestation scheme that land being planted must be of a sufficiently high yield class to produce a crop of wood that is commercially viable. The site in question was found on inspection to be unsuitable to produce such a crop. The adjoining land referred to by the Deputy is located over a mile away from the site in question. It is the case that within the same general area, soil and site conditions can vary appreciably such that one area may be considered eligible for grant while another is not.