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.

Elements of scientific agriculture or, The connection between science and the art of practical farming.

• Bodenkunde.
  Auteur(s): Ramann, Emil

• Wichtige Krankheiten der Waldbäume. Beiträge zur Mycologie und Phytopathologie für Botaniker und Forstmänner.
  Auteur(s): Hartig, Robert
• Untersuchungen über chlorophyll methoden und ergebnisse
  Auteur(s): Willstätter, Richard ,  Stoll, Arthur
• Untersuchungen über die assimilation der kohlensäure.
  Auteur(s): Willstätter, Richard ,  Stoll, Arthur