Nice example of how this page could be structured (U of Wisc)
Soil Sampling and Testing
University of Idaho Soil Sampling Guide
Soil Sampling for Home Gardens and Small Acreages
Monitoring Soil Nutrients Using a Management Unit Approach
Commercial Laboratories serving Oregon (2008)
Soil Test Interpretation Guide
Home Gardening
Fertilizing Your Garden: Vegetables, Fruits, and Ornamentals
Managing Organic Materials (manure, biosolids, cover crops, etc)
Post Harvest Soil Nitrate Testing for Manured Cropping Systems West of the Cascades
Estimating Plant Avialable Nitrogen from Manure
Calculating Dairy Manure Nutrient Application Rates
Crop Specific Guides