This was my first time growing tomatoes at all, and I decided to grow from seed using the great info from this forum. My grandmother (who had tried repeatedly to grow them from seed with no success) was very impressed with the results--my tomatoes are doing GREAT! They are about 10 inches tall and look pretty darned healthy!
Once this cold snap is over (we actually had a frost advisory last night that had me moving my plants inside at 3am...don't ask why I was up that late!), I will be planting them in the ground (hopefully this weekend).
I realize, though, that I still have not fertilized them even once! The problem was that I went to my local Menard's/home improvement store, and every brand of tomato fertilizer has completely different N-P-K numbers. Like, VASTLY different! Not even the same proportions! I even tried my garden center-- same problem. So I walked away from the stores with nothing.
I don't believe I have ready access to things like fish fertilizer or kelp fertilizer, etc. I do have a compost heap, although it's a bit young in the making. I am hoping to buy granules I can shake onto the soil around the plant. What numbers would be best for tomatoes?
I did have my soil tested this year (I am in a new house), and it did test low for nitrogen and potassium-- I was going to add these broadly in the garden. Not sure if that makes a difference for what you'd recommend.