Soil and Additives

• Compost
• Fertilizers
• Mulch

• Building Fertile Soil  - Information on creating a healthy soil environment for plant growth.
• Improve Your Garden Soil  - Discusses the basics of the Gardener's Loam - a man-made soil ideal for plant cultivation. With information on soil acidity, testing, composting, and fertilizing.
• Improving Soil  - Includes basic considerations, water drainage, and moisture conditions at time of working, erosion, texture and structure, soil and other related facts.
• Improving Soils For Vegetable Gardening  - Fact sheet detailing how to improve soils which will then be better for vegetable gardening.
• Lead Contamination In The Garden  - Causes and effects of elevated lead levels, recommendations of both health and soil screening procedures with guidelines for gardening in areas with lead contamination.
• Organic Soil Fertility  - Details strategies used to build and manage soil fertility on organic farms.
• The Schundler Company  - Discusses about horticultural uses of perlite and vermiculite, with horticultural plant guides and photos.
• Soil Testing is an Excellent Investment for Garden Plants and Commercial Crops, HYG-1132-99  - Fact sheet that details the benefits of testing garden soil and recommendations for testing frequency, collecting samples, and lab submission. pdf download.
• Vermiculite  - Lays out a set of guidelines and suggestions on how and where to get vermiculite.
• The World of Soil  - Information on the composition and maintenance of soil.