# Fertilizing

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.

<figure><img src="https://3677132957-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FF8OuqlG4SiJ3bLJ9JiW1%2Fuploads%2FJWtxMEDIJlxRNa3gyvDh%2F0%20NkwUQUmQcImbimTW.png?alt=media&#x26;token=c8257fb8-e44a-4d38-ad5b-ecfc82671190" alt=""><figcaption><p>Increasing the fertility multiplier costs $FERT and increases LP Farm reward rates.</p></figcaption></figure>

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.

Fertility mechanics are explored in detail in the sections [$FERT Burning](https://docs.chikn.farm/tokens/fert/fert-burning) and [LP Farm](https://docs.chikn.farm/nfts/farmland-nft/lp-farm).