I have black spots on my tomato leaves and there wilting. they are yellowing as well.?

This seems to be the work of a fungal problem rather than a lack of nutrition. There are some tomato foods that contain control for tomato wilt and blackspot. Follow label directions and water the plants thoroughly in the early a.m. careful not to wet the foliage. Slow trickle around the root zone is best. Planting in an open area where the air can move freely through the plants is also a good control for fungal problems.