Section 39
SEC. 39. It shall be an inherent and essential condition of the lease that the lessee shall have not less than one-third of the land broken and cultivated within five years after the date of the approval of the lease: Provided, however, That in case the land leased is to be devoted to pasture, it shall be sufficient compliance with this condition if the lessee shall graze on the land as many heads of cattle as will occupy at least one-half of the entire area at the rate of one head per hectare.