In Closing: Tomatoes are a fairly robust plant and they stand up well to a little deprivation so don't stress over the issue of feeding too much
. Mainly focus on getting your soil right, planting your plants in the correct spot and establishing a good routine of watering and pruning. If you do these things well your plants will survive. The exact best ratios and types of feeds you will need to get the absolute best from your plants will be something that comes to you with experience.