I did a little research on the subject of tomato growing and I found a few hints or enhancements that I have never tried, but they all sounded like they could be real, and none of them would cost a lot of money to try. As with most plants, begin with the soil. Tomatoes prefer well-drained soil with plenty of organic matter. Dig the hole about 1 foot wide and 8 inches deep, and put in a layer of compsot or well-rotted manure mixed with bone meal and 1 teaspoon of Epsom salts. Limit the nitrogen. Too much nitrogen promotes foliage growth and makes the fruits watery and less tasteful.
Water regularily and when the tomatoes begin to ripen, redden, or showing color, add a spoonful of sugar to thier water. The tomatoes should be sweeter. Another hint I found had to do with eggshells. The practice of blending eggshells and then adding them to the water every 7 to 10 days will add calcium and help prevent blossom-end rot. About 6 shells per quart should suffice. Prune the plants by pinching out suckers between mainstems in order to send more nutrition to the main branches for enhanced fruit development. The final hint has to do with the effects of cold nights. Cold nights can cause blossom drop and thus delay fruit set. Place tiles close to the plant so that the residual heat from the sun will keep the tomato plants warmer. Remove the tiles when night time temps get warmer. Good luck with growing a great tomato crop.