Chaosmancer
Legend
It would take about 3 hours to plow an acre of land using move earth. The traditional way requires a team of oxen and a full day, so that is a significant improvement. But unless spellcasters are as common as dirt (pun intended), it's not going to have a significant effect on agriculture. Wizards can find more lucrative uses for their time than taking the place of 4 peasant farmers.
This is the reason I rarely fuss about the worldbuilding impact of utility magic--most of it doesn't scale to the extent that would be needed to affect the world. The exceptions generally involve the rich and powerful, because their numbers are small enough to benefit from the similarly small supply of casters. For example, resurrection, healing, and restoration magic means the rich never have to die except of old age. The clone spell makes it possible to overcome even that. Zone of truth changes torture from "mostly pointless sadism" into "highly effective interrogation technique," enabling a powerful surveillance state.
How common are Elves? Variant humans can get the Magic Initiate Feat which gives a cantrip. It is a druid cantrip as well, which means it doesn't need rigorous study, just faith in the power of nature, even worshipping say... a goddess of the harvest? Lots of races get the Druidcraft cantrip, which means it isn't unreasonable to imagine they could instead learn Mold Earth.
I'm not going to say that every farmer should be a magic-user, but it isn't hard to imagine a family of pious farmers getting blessed with this minor magic that makes a BIG difference.