NC State Extension



Soil Testing

Extension Soils Portal

Soil Science Info

Fertilizing with Organic Nutrients, USDA

Soils Publications

Soils Magazine – Soil Science Solutions

Soils of North Carolina

Soil Science Society of America

Ag Chem ManualFertilizers

Nutrient Sufficiency Levels 


  • Composting Chapter of the Extension Gardener Handbook
  • Composting Resources, Growning Small Farms
  • Vermicomposting,  Includes information on Earthworm facts, Worms and Worm Bins, For Households, For Schools, For Businesses, Farms, Institutions, Municipalities
  • Vermicomposting Conference. An annual conference about earthworm farming and commercial vermicomposting taught by industry experts. This conference is for both beginners and seasoned earthworm farm operators.
  • Herbicide Carryover. Broadleaf herbicides applied to pastures can be consumed by livestock and passed through to manures. The herbicides may also be present is straw and hay. This publication identifies the types of herbicides, crops sensitive to the herbicides how to prevent contamination and how to test.

Cover Crops

Soils 101 –  a self-paced, online, distance education course offered by NC State Extension and NC State Soil Science Department.


  • SoilWeb Apps – GPS based, real-time access to USDA-NRCS soil survey data, formatted for mobile devices. This application retrieves graphical summaries of soil types associated with the user’s current geographic location. Images are linked to detailed information on the named soils.


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