Fertility is an upgradable feature of FarmLand NFTs, allowing players to permanently increase their LP Farm reward multiplier by burning $FERT. Fertility upgrades are written to the metadata of the FarmLand NFT and are featured on FarmLand available in the marketplace.
Increasing the fertility multiplier costs $FERT and increases LP Farm reward rates.
By default, all FarmLand (and players farming without a FarmLand) have a 4x multiplier that applies to their reward rate. Burning $FERT increases this multiplier in steps of 0.25x, up to a maximum fertility multiplier of 16x.