If this survey discloses certain land in the county to be blowing repeatedly, the board of county commissioners shall consider what measures of a permanent nature can be taken to prevent or minimize the blowing of the soil, any plant or weed thereon. For this purpose the board may conduct a hearing, after having given notice to the landowner of the time and place of such hearing, which notice may be given by registered mail. At such hearing testimony of those who have had experience or made a study of types of soil, types of plants or weeds, erosion of soil by wind, means of preventing the same, and studies or reports of governmental departments or other investigators of the subject may be considered. Respecting the land concerning which such a hearing has been had the board of county commissioners is authorized to determine what treatment of the land is necessary to prevent its blowing, whether it shall be planted to annual, biennial or perennial grasses, shrubs, trees or if cultivated, the manner and times of year of such cultivation, and may order that the land be treated in accordance with this conclusion, and if such orders are not complied with by the owner of the land the board of county commissioners may do or have done the planting or cultivation ordered.