This link might contain a lot of useful information and answer your question. Good luck :)

Here is a link that might be useful: Fertilizing and Feeding

Hi a2jacmac - feeding your plants is one of those topics - like pruning or not pruning - that has camps of folks all along the How-to river. ;) There honestly is no 1 right way to do it because there are so many variables to consider. So all we can do is tell you how each of us do the job.

To me it sounds like you are off to a good start with your planting holes. I amend mine too just using some different ingredients and lots of compost. I then feed the plants again after the first flush of fruit sets using a fresh layer of compost under my mulch. Once a week I give them a good dose of either compost tea or diluted fish emulsion fertilizer. Depending on the weather they get one additional compost feeding in late July or early August to keep them going till frost.

That is what works for me but I'm sure you'll get other suggestions too. Good luck and enjoy your tomatoes!

Dave

PS: Keep in mind that tomatoes are self-pollinating - the blooms are self-fertile - so you don't really need to use the brush trick. ;)

I don't have any idea what the best fertilizing system is, but I mix compost and boxed organic vegetable fertlizer into the soil at planting time and that's it for the rest of the season. I get big plants with lots of fruits, so I suppose I'll just keep doing it that way for a while. I'm no tweaker, that's for sure. If I get tomatoes, I'm happy.