Liquid fertilizers such as Miracle-Gro or organic, nitrogen-rich liquids like fish emulsion and seaweed kelp all represent good choices for feeding tomatoes at planting time. Take care, however, to limit nitrogen fertilizer, in liquid or solid forms, during most of the growing season. Otherwise, the tomato plant could become all vine and no fruit.
About this Author
Melissa Jordan-Reilly has been a writer for 20 years, both as a newspaper reporter and as an editor of nonprofit newsletters. Among the publications in which she has published are, "The Winsted Journal," "Taconic" and "Compass Magazine." A graduate of the University of Connecticut, Jordan-Reilly also pursues sustainable agriculture techniques and tends a market garden at her Northwestern Connecticut home.