Note that crop quality is determined at harvest time and not at planting time, so fertilizer used in the [[Greenhouse]] on crops which will mature out of their normal growing season will disappear before harvest and have no effect.
Only one type of fertilizer may be used per soil tile. To remove fertilizer, use Removing a crop with a [[Tools|Tool]] like the [[Pickaxes|Pickaxe]] to does not remove the tilled soil, then start overfertilizer. Removing just a crop A second hit with the Pickaxe does not a tool is required to remove the fertilizer. Only one type of fertilizer may be used per soil tile.
==Types of Fertilizer==