This study presents a complete and up-to-date analysis of 23 trace elements in soils of various geographic and climatic regions of the world. The first section covers that 13 most important elements, giving full information on: the minimum and maximum contents of the total element and the amount utilizable by plants; the influence of parent rocks on the total content of an element in the soil; the distribution of the element between the horizons of soil profiles; the existig relationship between the total amount of an element and the quantity utilizable by plants; and limits where a deficiency or toxicity exists for plants. In addition, a synoptic table is provided for each element giving further information on: parent rocks; soil type; content of total element and that utilizable by plants (citing the extraction method); content in different horizons of the profile; variation in content according to soil characteristics; deficiency or toxicity; and effects of fertilizers. The next section of the book gives a briefer but up-to-date account of the ten least studied elements. The numerous analytic results together with the extensive references make this book particularly valuable for all those working in the many branches of soil and biological sciences.
