Land Act Article 121

The lessor of any farmland who supplies the lessee with draft animals, seeds, fertilizers, and other implements of production may, besides conforming to the provisions of Articles 462 and 463 of the Civil Code, charge a reasonable fee therefor in addition to the farm rent, if such fee is stipulated in the lease contract; but such fee shall not exceed an amount equivalent to an annual interest of 10 per cent on the value of the things supplied.