All rents, except rents from sharecropping which shall be paid after the crop has been harvested, shall be paid annually in advance. No term of lease may exceed five years, nor is any lease valid until it receives the approval of the Governor. However, any lessee of such common school, indemnity, or endowment lands is, at the expiration of a five-year lease, entitled, at the lessee's option, to a new lease for the land included in the lessee's original lease, or such portion thereof which has not been sold, for a period of five years.
SDCL 5-5-11