I know the standard is 30in. between plants and 2-3ft. between rows. How far apart are yours, also, how do you train them, stakes, cages, fence, etc.?
Some say that the farther your plants are apart, the more tomatos you will have on each plant. Likewise, the opposite holds true too. I read a study that was done in another country concerning the relationship between plant densities, and plant yields. The study found that when plants were spaced about 2-2 1/2ft. apart the plants had a greater yield each, but when the plants were 1ft. apart, the yield decreased. The overall yield for the whole patch, however, was higher the closer the plants were placed. This indicates that the extra plants you get by having them closer together, produce enough fruit to outweigh the fruit you lose from decreased production per plant. I should also note that I think this was done on a commercial farm. What are your thoughts on the findings of this study?
I personally have my plants 1ft. apart in rows 2ft. apart and tie them to stakes.