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Explains how iron deficiency affects trees and plants, and how to correct it. Ohio State University fact sheet.
site exerpt
Iron Chlorosis, HYG-1009-88 Iron is necessary for the formation of chlorophyll, which is responsible for the green color in plants and is the source of plant food and energy. When the amount of iron available to plants is inadequate for normal growth, leaves...Guide to creating and maintaining good quality soil, emphasizing organic materials and composting, from the Center for Agroecology and Sustainable Food Systems.
http://zzyx.ucsc.edu/casfs/gardenideas/soilfert.html
Includes articles on making potting mixes, proper watering techniques, nutrient needs, and mulching.
http://www.bhg.com/bhg/category.jhtml?catref=C401
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.
http://ohioline.osu.edu/hyg-fact/1000/1149.html
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.
http://ohioline.osu.edu/hyg-fact/1000/1132.html
Ohio State University fact sheet covers soil basics: types, texture and structure, drainage and moisture, nutrients, pH, and cover crops.
http://ohioline.osu.edu/hyg-fact/1000/1602.html
One-page site giving suggestions on where to purchase vermiculite in the United States, along with some uses and properties of vermiculite.
http://www.vermiculite.com
Covers a wide range of garden soil topics, including soil types, pH, nutrients, testing, composting and fertilizers.
http://www.improve-your-garden-soil.com/
An introduction to soil components, acidity, fertility, and care, as well as an extensive collection of links to other soil resources.
http://web.ukonline.co.uk/fred.moor/soil/
Collection of articles and resources about the horticultural uses of perlite and vermiculite.
http://www.schundler.com/hort.htm
Informational sheet.
http://www.bbclabs.com/function.htm
Series of projects, articles, and tips on fertilizing, composting, and nutrient management.
http://doityourself.com/fertilizer/
Collection of articles from Oregon State University on various aspects of soil: use of amendments and cover crops, temperature, acidity, moisture, and testing.
http://extension.oregonstate.edu...tegory_search.php?searchCat=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.
http://www.rodsgarden.50megs.com/improvingsoil.htm