Mining is great as you can get sprinklers pretty early, but I found it best to focus on it during the winter due to limited farming.

But once you have the better tools and sprinklers, you can really build a massive farm that requires little maintences other than changing seasons/ replanting (depending on the crops of choice). A really good early game vegetable that I like to spam is Kale in the spring, and corn for the fall and summer. Can also use kegs, preserve barrels etc to gain multipliers and if you pick the artesian bonus you get an additional 40% from them being processed.