"A cultivator is most useful in the medium or larger vegetable patch, or in garden beds where there is enough room to manoeuvre a large tool. It stirs the soil and pulls up young weeds between the rows quickly and efficiently. It's also useful when you want to incorporate compost or manure that you've already broadcast on the soil's surface. According to how much pressure you apply to the tool, it can work to differing depths." (The Tool Book by William Bryant Logan, 1997 Workman Publishing Inc)