My garden spot is two years old and it's not the best of soils. Living on a hill and the soil is likely acidic, slightly redish (not dark brown or black). Last fall I added some mulched leaves and a little lime. This spring when I planted my vegetables, I added a good handful or so of 13-13-13 around each plant and mixed it in. That was late April to early May. Now it's July and I want to know if I should be adding more and what the recommeded ratio of NPK is for a small garden with tomatoes, squash, and peppers. Should I pick one with lower N levels than I used earlier and how long does fertilizer last?
I planted a new tomato yesterday that I rooted. When I dug the hole I found the hard pan I assume. Very hard dirt and was orangish in color. It was around 8-10 inches below the surface. I wondered if this is causing problems for root developement with my vegetables.