It really is an interesting turn of events as more people become interested in small home gardening projects and things like biking to work. Meanwhile the "communists" are polluting, eating and smoking themselves to death as they find increased economic success.
My wife's tomatoes look the best we've ever had so far this year. Green leaves all the way up and down the stem. She starts them inside, then they go into a small greenhouse, then directly into the garden ground. The garden soil is mixed with Miracle-Grow potting mix and some wood ash from the firewood stove.
I think you're looking at a soil PH problem. I've seen soil test strips at Wal-Mart. You literally have too much fresh BS in there.
The plants can also be stressed a little when repotted. We try to get any kind of repotting or ground planting on tomatoes done in cooler weather.
What does the rest of your drip irrigation setup look like? Is it just hooked into your house water tap? Any kind of water volume control, or do you just turn it on and let it run for a few hours?
Ken300D