MILO I. HARPSTEAD, THOMAS J. SAUER, and WILLIAM F. BENNETT. Illustrated by MARY C. BRATZ. Iowa State University Press, 2121 South State Avenue, Ames, Iowa 50014. 2001. Hardback, 225 p. $44.95. ISBN 0-8138-2942-9.

The first edition of this book was published in 1980. The second edition was published eight years later and the third edition was recently published in 1997. Soil physicist Thomas J. Sauer replaced Francis D. Hole as the second author starting with the third edition. Soil fertility and management were expanded in the second edition. Primarily, soil water, soil temperature, and soil engineering were revised in the...

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