Thanks for posting those tips, Jim. Ammonium nitrate, huh? I'll have to check into that. I had always heard that if you give tomatoes too much nitrogen that you'll end up with a big healthy plant but few tomatoes. I do plant them with an organic granular fertilizer for vegetables along with crushed egg shells in the planting hole. Usually the first tomato of the season has blossom end rot but not the rest of the crop. I do mulch them with shredded leaves to help with the moisture thing and have a drip hose for when things really get dry. Here, so much of the state of the crop depends on weather - if it's too cool or wet or whatever.