This is an ebook form only that can be downloaded. Soil BIology Primer is written by Elaine Ingham, Ph.D., Andrew R. Moldenke, and Clive A. Edwards. The book is for farmers, ranchers, AG professionals, resource specialists, conservationists, soil scientists, students and educators. The Soil Biology Primer is an introduction to the living component of soil and how it contributes to agricultural productivity, and air and water quality. The Primer includes units describing the soil food web and its relationship to soil health, and units about bacteria, fungi, protozoa, nematodes, arthropods, and earthworms.