Related Books

Dry land farming

Dry-farming: its principles and practice

Dry farming in western Canada

Dry farming in Oregon

• Progressive agricutlure, 1916, tillage, not weather, controls yield
  Author(s): Campbell, Hardy Webster
• Campbell''s 1907 soil culture manual a complete guide to scientific agriculture as adapted to the semi-arid regions.
  Author(s): Campbell, Hardy Webster
• Soil culture primer a plain and practical discussion of the relation of plants to the soil and the principles of growth; the laws governing the movement of water in the soil and its evaporation from the surface
  Author(s): Campbell, Hardy Webster ,  Haste, Richard A., [from old catalog]