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

• Soil bacteria and phosphates
  المؤلفون: Hopkins, Cyril G. ,  Whiting, Albert L.
• Laboratory manual for soil fertility
  المؤلفون: Pettit, James Harvey ,  Hopkins, Cyril G.
• For Better crops
  المؤلفون: Hopkins, Cyril G.

• What birds have done with me
  المؤلفون: Kutchin, Victor.
• What birds have done with me
  المؤلفون: Kutchin, Victor.
• The unity of the organism or, The organismal conception of life
  المؤلفون: Ritter, William Emerson