كتب ذات صلة

Vertical farming

Tobacco soils of the United States: a preliminary report upon the soils of the principal tobacco districts.

Talks about the soil in its relation to plants and business. A book of observations and experiments for the use of schools, students, and farmers.

Synopsis of a course of lectures on the origin, composition, and functions of soils, and their bearing on agriculture. Delivered at the University of California, during the first term, 1874-5

• Progressive agriculture, 1916 tillage, not weather, controls yield
  المؤلفون: Campbell, Hardy Webster
• Progressive agricutlure, 1916, tillage, not weather, controls yield
  المؤلفون: Campbell, Hardy Webster
• Campbell''s 1907 soil culture manual a complete guide to scientific agriculture as adapted to the semi-arid regions.
  المؤلفون: Campbell, Hardy Webster

• Wheat a practical discussion of the raising, marketing, handling and use of the wheat crop, relating largely to the great plains region of the United States and Canada
  المؤلفون: Ten Eyck, A. M.
• Wheat a practical discussion of the raising, marketing, handling and use of the wheat crop
  المؤلفون: Ten Eyck, Albert Moore