The text was designed and written to achieve four major goals: 1. To acquaint the reader with the soil and water resources of the United States. 2. To present soil science theory insofar as it applies to soil use by a grower. 3. To show how soil is used by farmers and horticulturists. 4. To cover the basics of soil and water conservation. Any study of soil science must investigate the physical and chemical relationships that govern soil reactions and the interactions between soil, water and plants. These fundamental principles are stressed throughout the text. A prior study of chemistry is not required of the reader. Sufficient chemical principles are presented to ensure that the reader will understand the various chemical reactions that take place in the soil. Each chapter is arranged to enhance learning. A short introductory paragraph briefly informs the reader about the chapter content and lists important study hints. The objectives tell the reader what learnings is to be achieved by reading the chapter. A summary at the end of each chapter recaps the important points of the discussion. Following the main content, a list of terms is given so that the reader will have an opportunity to review the meaning of each term. The definitions can be checked in the chapter or in the glossary at the back of the text. The review exercises can be answered from the content presented in the chapter or by referring to the Appendixes. Finally, the suggested activities offer the reader the opportunity to expand his or her learning by investigating related topics or activities.
114.1 (Physikalische Bodeneigenschaften (Gleichlaufend mit UDK 631.43 geordnet)) 114.2 (Chemie des Bodens. Analyse (Gleichlaufend mit UDK 631.41 geordnet)) 114.3 (Bodenbildung. Das Bodenprofil und seine Entwicklung) 114.4 (Einteilung der Böden. Bodentypen) 114.5 (Bodenfruchtbarkeit. Bodengiftigkeit) 114.6 (Biologie des Bodens (gleichlaufend mit UDK 631.46 geordnet))
