A cracked farming urn is the resulting urn after the player starts filling a cracked farming urn (empty). While the player carries the urn in their backpack, it will fill up passively as the player gains Farming experience from certain activities, for example gathering yields from Farming patches and produces from animals, checking health of the plants etc. requiri,g up to and including level 12 Farming, until it is filled with 1,100 experience and becomes a cracked farming urn (full).
The fully filled urn will grant 220 Farming experience after teleporting the urn to Ernie. While carrying an urn enhancer, it will instead grant 275 experience per teleported urn for a cost of 20 charges.
Making the urns and adding a nature rune to the urns requires level 5 Crafting. The Assist System and temporary skill boost can be used to do so. Filling the urns and teleporting the urns does not require a Crafting level.