Soil is a general term which refers to the earth that plants grow in. This category lists sites providing information and advice to home gardeners on the topics of soil, potting mixtures, and additives. Compost (61) Fertilizers (14) Mulch (14) 1. A Summary Guide For The Microbiological Analysis of Soil and Compost - Informational sheet. 2. Better Homes and Gardens: Soil, Water & Fertilizers - Includes articles on making potting mixes, proper watering techniques, nutrient needs, and mulching. 3. Gardening Information: Soil - Collection of articles from Oregon State University on various aspects of soil: use of amendments and cover crops, temperature, acidity, moisture, and testing. 4. Improving Soil - Oregon horticulturalist offers information on soil components, pH, testing methods, and nutrients, and means of improving it by using amendments and improving drainage and aeration. 5. Improving Soils For Vegetable Gardening - Ohio State University fact sheet covers soil basics: types, texture and structure, drainage and moisture, nutrients, pH, and cover crops. 6. Iron Chlorosis - Explains how iron deficiency affects trees and plants, and how to correct it. Ohio State University fact sheet. 7. Lead Contamination In The Garden - 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. 8. Soil Testing is an Excellent Investment for Garden Plants and Commercial Crops, HYG-1132-99 - 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. 9. The Schundler Company - Collection of articles and resources about the horticultural uses of perlite and vermiculite. 10. Improve Your Garden Soil - Covers a wide range of garden soil topics, including soil types, pH, nutrients, testing, composting and fertilizers. 11. The World of Soil - An introduction to soil components, acidity, fertility, and care, as well as an extensive collection of links to other soil resources. 12. Vermiculite.com - One-page site giving suggestions on where to purchase vermiculite in the United States, along with some uses and properties of vermiculite.

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