PerennialVegetables.com

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.
extension.oregonstate.edu/

Soils and Soil Management
Offers a database and search function of a range of articles about fertilizers.
www.msue.msu.edu/

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.
ohioline.osu.edu/

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.
web.ukonline.co.uk/

Better Homes and Gardens: Soil, Water & Fertilizers
Includes articles on making potting mixes, proper watering techniques, nutrient needs, and mulching.
www.bhg.com/

Building Fertile Soil
Guide to creating and maintaining good quality soil, emphasizing organic materials and composting, from the Center for Agroecology and Sustainable Food Systems.
zzyx.ucsc.edu/

Do It Yourself.com: Fertilizer, Compost, and Soil
Series of projects, articles, and tips on fertilizing, composting, and nutrient management.
doityourself.com/

A Summary Guide For The Microbiological Analysis of Soil and Compost
Informational sheet.
www.bbclabs.com/

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.
ohioline.osu.edu/

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.
www.rodsgarden.50megs.com/