Campbell's 1907 soil culture manual
Subtitle: a complete guide to scientific agriculture as adapted to the semi-arid regions.  The proper fitting of the soil for the conservation and control of moisture and the development of soil fertility; how moisture moves in the soil by capillary attraction, percolation and evaporation; the relation of water and air to plant growth, and how this may be regulated by cultivation.
By: H. W. Campbell, author.
Published: 1907
Place of publication: Lincoln, Nebr
Language: eng
Number of pages: 320
Subjects: Dry farming.