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Centre for Soil and Environmental Quality P.O. Box 84 Lincoln University Canterbury, New Zealand
dih{at}lincoln.ac.nz
This book provides a detailed description on "how plant nutrients and other solutes move in response to leaching and plant uptake." Solute movement and nutrient uptake mechanisms and models are the central subjects of the book.
The book is an updated and expanded version of an earlier comprehensive text by the same authors titled Solute Movement in the Soil-Root System, published in 1977. Although some of the chapter outlines and illustrations from the earlier version are retained in the new book, these chapters have been updated, with references dating up to the late 1990s. Particularly significant is the new material on the modifications of the rhizosphere by plant roots and microorganisms, and the microbial effects on nutrient uptake and plant growth.
This new book has 11 chapters compared with the earlier version of eight. The first chapter provides a historical perspective on the subject and introduces the continuity or mass balance equation on solute transport. This is followed by three chapters that provide concise descriptions of soil water movement and uptake by plants; solute interchanges between the solid, liquid, and gaseous phases; and local solute movement in the soil with an emphasis on diffusion. The authors then move on to discuss the mechanisms of nutrient uptake by roots (Chapter 5) and the movement of solutes near root surfaces (Chapter 6). Much new information is provided in Chapters 7 and 8 on the modifications in the rhizosphere induced by plant roots and microorganisms, including the microbial community and processes in the rhizosphere, and effects on plant growth and nutrient uptake by free-living organisms and mycorrhizal fungi. In Chapter 9, the authors turn their attention from single roots to root system distribution and architecture, describing the morphology and measurement of root systems, carbon allocation, and factors affecting root form and distribution. The last two chapters provide a comprehensive description of nutrient uptake and plant growth models for single plants (Chapter 10) and for a range of field crops (Chapter 11).
One of the strong features that this new book retains is the quantitative approach to the analysis and treatment of the many processes discussed. The book contains a wealth of quantitative information in the form of tables and figures on the processes of solute movement and plant nutrient uptake. An extensive and up-to-date reference list is provided. The emphasis of the book is on describing the general processes and mechanisms and their modeling rather than on detailed descriptions of individual nutrients.
The book is a valuable reference for senior university students and other scientists engaged in research on solute movement, plant nutrition, rhizosphere processes, and crop growth. The sections on solute movement may also be of assistance to environmental scientists working on nutrient losses and contaminant transport.
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