Guide to creating and maintaining good quality soil, emphasizing organic materials and composting, from the Center for Agroecology and Sustainable Food Systems.
Includes articles on making potting mixes, proper watering techniques, nutrient needs, and mulching.
Explains how iron deficiency affects trees and plants, and how to correct it. Ohio State University fact sheet.
Covers causes and effects of elevated lead levels, recommends both health and soil screening procedures, and provides guidelines for gardening in areas with lead contamination.
Ohio State University fact sheet covers the benefits of testing garden soil and provides recommendations for testing frequency, collecting a sample, and submitting to a testing lab.
Ohio State University fact sheet covers soil basics: types, texture and structure, drainage and moisture, nutrients, pH, and cover crops.
One-page site giving suggestions on where to purchase vermiculite in the United States, along with some uses and properties of vermiculite.
Covers a wide range of garden soil topics, including soil types, pH, nutrients, testing, composting and fertilizers.
An introduction to soil components, acidity, fertility, and care, as well as an extensive collection of links to other soil resources.
Collection of articles and resources about the horticultural uses of perlite and vermiculite.
Science /
Agriculture /
Soils
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