Tomatoes prefer slightly acidic, well-drained soil prepared before planting with rich, deep humus or compost. Add phosphorus, but avoid adding nitrogen or plant growth will trump fruit development.
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Alice Moon is a freelance writer with more than 10 years of experience. She was chosen as a Smithsonian Institute intern, working for the National Zoo in Washington, D.C., and has traveled throughout Asia. Moon holds a Bachelor of Science in political science from Ball State University.