Livres associés

Plant products and chemical fertilizers

On the science of agriculture: comprising a commentary on and comparative investigation of the agricultural chemistry of Kirwan and Sir Humphry Davy

From the letter-files of S.W. Johnson, professor of agricultural chemistry in Yale University, 1856-1896, director of the Connecticut Agricultural Experiment Station, 1877-1900 edited by his daughter, Elizabeth A. Osborne.

Forstliche Bodenkunde und Standortslehre

• How crops grow a treatise on the chemical composition, structure and life of the plant, for students of agriculture, with numerous illustrations and tables of analyses.
  Auteur(s): Johnson, Samuel William
• How crops feed. A treatise on the atmosphere and the soil as related to the nutrition of agricultural plants.
  Auteur(s): Johnson, Samuel William
• How crops feed a treatise on the atmosphere and the soil as related to the nutrition of agricultural plants.
  Auteur(s): Johnson, Samuel William