Every landlord leasing land for agricultural purposes shall have a prior and preferred lien for his rent to the extent of all crops raised on the lands leased by him, whether raised by the tenant or some other person. No writing or recording shall be necessary to create such lien, but it shall exist from the date of the contract, whether in writing or verbal, and the landlord and his assigns may enforce such lien in the same manner, upon the same conditions and subject to the same restrictions as are provided in this chapter for persons making advances for agricultural purposes. And, subject to the liens hereinafter provided for and enforceable in the same way, the landlord and his assigns shall have a lien on all the crops raised by the tenant for all advances made by the landlord to such tenant during the year.