Soil and Plant Nutrition: A Gardener’s Perspective, by Lois Berg Stack, Ornamental Horticulture Specialist, University of Maine Cooperative Extension Bulletins Applying Fertilizers on Your Home Gardens, Bulletin #2287 Guidelines for Using Manure on Vegetable Gardens, Bulletin #2510 Lead in the Soil, Bulletin #2281 Soil Organic Matter, Bulletin #2288 Testing Your Soil, Bulletin #2286 Videos Garden