Building Fertile Soil:
Guide to creating and maintaining good quality soil.
http://zzyx.ucsc.edu/casfs/gardenideas/soilfert.html
Soil:
Gardening and in particular, soil information from the Oregon State
University.
http://eesc.orst.edu/agcomwebfile/garden/soil/
Soil and Fertilizers:
Publications about fertilizing a number of different plants, from
the North Dakota State University.
http://ndsuext.nodak.edu/extpubs/soilfert.htm
Soil Management:
A number of publications (in PDF format) dealing with topics about
soil.
http://www.uwex.edu/ces/pubs/soilcat.html
Soil Resource Management:
References about the fertility, compaction, testing and conservation
of soil. Published by the University of Nebraska.
http://www.ianr.unl.edu/pubs/soil/
Understanding Your Soil:
An introduction to understanding the basic components of soil.
http://homepages.which.net/~fred.moor/soil/formed/f01.htm
Iron Chlorosis:
Explains iron chlorosis in trees and plants, and how to correct it.
http://www.ag.ohio-state.edu/~ohioline/hyg-fact/1000/1009.html
Improving Soil:
Instructions for improving soil. Includes soil components, soil
testing and soil amendments.
http://www.rodsgarden.50megs.com/improvingsoil.htm
