Inorganic Plant Nutrition

The first book bearing the title of this volume, Inorganic Plant Nutrition, was written by D. R. HOAGLAND of the University of California at Berkeley. As indicated by its extended title, Lectures on the Inorganic Nutrition of Plants, it is a collection of lectures - the JOHN M. PRATHER lectures, which he was invited in 1942 to give. at Harvard University and presented there between April 10 and 23 of that year - 41 years before the publication of the present volume. They were not "originally intended for publication" but fortunately HOAGLAND was persuaded to publish them; the book appeared in 1944. It might at first blush seem inappropriate to draw comparisons between a book embodying a set of lectures by a single author and an encyclopedic volume with no less than 37 contributors. But HOAGLAND'S book was a compre hensive account of the state of this science in his time, as the present volume is for ours. It was then still possible for one person, at least for a person of HOAGLAND'S intellectual breadth and catholicity of interests, to encompass many major areas of the entire field, from the soil substrate to the metabolic roles of nitrogen, potassium, and other nutrients, and from basic scientific topics to the application of plant nutritional research in solving problems encountered in the field.

Contenu
A.- I. General Chapters of Inorganic Plant Nutrition.- I.1 General Introduction to the Mineral Nutrition of Plants (With 11 Figures).- I.2 The Significance of Rhizosphere Microflora and Mycorrhizas in Plant Nutrition (With 7 Figures).- I.3 Modern Solution Culture Techniques (With 3 Figures).- I.4 Diagnosis of Mineral Deficiencies Using Plant Tests (With 5 Figures).- 1.5 Interactions Between Nutrients in Higher Plants (With 9 Figures).- I.6 Import and Export of Mineral Nutrients in Plant Roots (With 10 Figures).- I.7 Cycling of Elements in the Biosphere (With 5 Figures).- II. Inorganic Nitrogen Nutrition.- II.1 Physiology, Biochemistry and Genetics of Dinitrogen Fixation (With 3 Figures).- II.2 Dinitrogen-Fixing Symbioses with Legumes, Non-Legume Angiosperms and Associative Symbioses (With 7 Figures).- II.3 Dinitrogen Fixation in Rhizosphere and Phyllosphere Associations (With 2 Figures).- II.4 Uptake and Reduction of Nitrate: Bacteria and Higher Plants.- II.5 Uptake and Reduction of Nitrate: Algae and Fungi (With 4 Figures).- III. Metabolism of Sulfur and Phosphorus.- III.I Reduction and Other Metabolic Reactions of Sulfate (With 6 Figures).- III.2 Physiology and Metabolism of Phosphate and Its Compounds (With 4 Figures).- Author- and Subject Index (see Part B).