N.C. Gen. Stat. § 42-15
When lands are rented or leased by agreement, written or oral, for agricultural purposes, or are cultivated by a cropper, unless otherwise agreed between the parties to the lease or agreement, any and all crops raised on said lands shall be deemed and held to be vested in possession of the lessor or his assigns at all times, until the rents for said lands are paid and until all the stipulations contained in the lease or agreement are performed, or damages in lieu thereof paid to the lessor or his assigns, and until said party or his assigns is paid for all advancements made and expenses incurred in making and saving said crops.
This lien shall be preferred to all other liens, and the lessor or his assigns is entitled, against the lessee or cropper, or the assigns of either, who removes the crop or any part thereof from the lands without the consent of the lessor or his assigns, or against any other person who may get possession of said crop or any part thereof, to the remedies given in an action upon a claim for the delivery of personal property.
Provided, that when advances have been made by the federal government or any of its agencies, to any tenant or tenants on lands under the control of any guardian, executor and/or administrator for the purpose of enabling said tenant or tenants to plant, cultivate and harvest crops grown on said land, the said guardian, executor, and/or administrator may waive the above lien in favor of the federal government, or any of its agencies, making said advances.
N.C. Gen. Stat. § 42-15