In the context of environmental concerns, much published data of dubious validity, and the increasing cost of fertilizers, this update of the 1992 edition of this standard laboratory manual for soil testing includes new and modified analysis methods for evaluating the fertility status of cropped fields. Includes new sections on sampling and sample preparation; methods of instrumental analyses; and fully described specific micronutrient and heavy metal determination procedures. Appends information on standards and standard preparation, and conversion factors. References include general, analytical, and quality assurance texts. First published in 1976 or 1974, depending on the introduction or back cover. Annotation c. Book News, Inc., Portland, OR (booknews.com)