This in-depth handbook, presents the author's research on soils and water throughout the prairie provinces over the course of 40 years as a farmer, a professor and an agricultural/environmental consultant.  Most of Henry's research focuses on soil fertility and salinity, as well as on issues related to surface and groundwater.  Numerous photos, charts and diagrams accompany the text to further illustrate and clarify the author's findings.  The front cover folds out into a soil zone map of canada for handy reference.