Posted: 07/07/2012 at 08:01
I'd plant into normal compost and fertilise separately. Bearing in mind that (a) toms don't like overly rich soil; and (b) don't need a lot of fertiliser. It's a common tendency to pamper tomatoes with lots of water and fertiliser. In fact, they will perform better - produce more fruit - if made to struggle a bit. "Tough love" is the go. Fertilise when the first fruit appears, then - if the roots are confined, as in pots, etc - no more than once a month afterwards. Mine, in the ground, are fed a couple of weeks after planting out, again when the first fruit sets, then only once more later in the season.