Beginner Gardening: Bottom leaves yellowing and drying out on edges...Help!, 0 by ryan112ryan

ryan112ryan wrote:
So this is mainly happening to my tomatoes, but it is also showing up on okra and squash, which leads me to believe it is a nutrient issue. It is only happening on some plants and it always the lower leaves. The edges will yellow, then brown, but mostly just the edge, some of then spread yellow to the rest of the leaf.

This is the first year in this spot, I haven't got my soil test results back yet. The lettuce, spinach, and potatoes in the same bed are doing really well. About 1 week ago I did apply a tomato plant feed of 18-18-21 I have also top dress it with 1 inch of compost before I planted (they have been in the ground for 3 weeks). I have been watering them pretty well, I don't think it is a water issue (over or under watering).

Any ideas?