Soil chemistry and biology
Organic nutrient managment
Soil testing labs
Soils maps
Drain tile

Soil chemistry and biology

Building Soils for Better Crops, 2nd Edition 2000, Fred Magdoff and Harold van Es, Sustainable Agriculture Network, USDA Sustainable Agriculture Research and Education Program. This book contains detailed information about soil structure and how to manage nutrients, cover crops, and manure use. It provides instruction for a soil health evaluation.

Why does soil biology matter and how do we affect it?, A series of slide shows from a meeting held in February, 2002.

Sustainable Soil Management, May 2004, Preston Sullivan, Appropriate Technology Transfer for Rural Areas (ATTRA). An excellent primer on what it takes to have a healthy soil.

Soil Biology Primer. 2000. Soil and Water Conservation Society. 48 pages. Excellent review of the the entire soil food-web. Great color plates.

Organic nutrient managment

Organic Nutrient Management and Water Quality, Craig Cogger, WSU Puyallup. Description of western Washington program.

Soil testing labs

Analytical laboratories and consultants serving agriculture in the Pacific Northwest. Washington St. Univ. Coop. Ext. EB1578E. June 2003.

Soils – Testing . Resources from WSU.

A list of analytical labs serving Oregon. Oregon Sate University Extension Service, EM8677. Revised January 2002.

Soil Test Interpretation Guide, Oregon Sate University Extension Service, EC 1478. Reprinted August 1999.

Western Agricultural Laboratories, with testing facilities in both Oregon, and California.

Alternative Soil Testing Laboratories, Steve Diver, Appropriate Technology Transfer for Rural Areas (ATTRA). Lists national labs that will test compost, as well as conventional soil. October 2002.

Soils maps
Natural Resources Conservation Service, a Federal agency provides leadership in a partnership effort to help people conserve, maintain, and improve our natural resources and environment. Soil surveys are available.

Drain tile
Advanced Drainage Systems, Inc., manufacturing HDPE drain tile for agricultural field draining.