Last spring I bought a soil test kit and never used it. I finally got around to using the kit this spring and found out my garden soil is very alkaline. My soil is also very deficient in nitrogen, but I haven't tested for potassium or phosphorus yet. Looks like I need a whole lot more compost and composted manure. I think I will also add bone meal to the tomato bed as I usually have a problem with blossom end rot, especially in the first tomatoes that ripen.