كتب ذات صلة

Vertical farming

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

Sulphur as a factor in soil fertility ...

• Tobacco soils Connecticut and Pennsylvania.
  المؤلفون: Whitney, Milton
• Catalogue of the First Four thousand samples in the soil collection of the Division of soils...
  المؤلفون: Whitney, Milton

• Wild volatile-oil plants and their economic importance: I.--black sage: II.--wild sage II.--swamp bay.
  المؤلفون: Rabak, Frank. [from old catalog]
• The whiting: a good fish not adequately utilized.
  المؤلفون: Moore, Henry Frank
• Whales and porpoises as food. (With thirty-two recipes...)
  المؤلفون: [Radcliffe, Lewis]