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This book will address the major subsoil physical and chemical constraints and their implications to crop production. Plant growth is often restricted by adverse physical and chemical properties of subsoils yet these limitations are not revealed by testing surface soils and hence their significance in crop management is often overlooked. The major constraints can be physical or chemical. Physical limitations such as poor/nil subsoil structure, sandy subsoils that do not provide adequate water or gravelly subsoils and, etc. On the other hand, chemical constraints include acidity/alkalinity, high extractable Al or Mn, low nutrient availability, salts, boron toxicity and pyritic subsoils. Some of these constraints are inherent properties of the soil profile while others are induced by crop and soil management practices. This aim of this book is to define the constraints and discuss amelioration practices and benefits for crop production. This book will be of interest to readers involved with agriculture and soil sciences in laboratory, applied or classroom settings.
Autorentext
Teogenes Oliveira is currently a Professor at the Federal University of Viçosa, Brazil, having worked for several years at the Federal University of Ceará, where he continues to run a Postgraduate Program in Ecology and Natural Resources. His academic and scientific work is in the area of Soil Science, focusing especially on the study of soil and water management and conservation and agroecology, with emphasis on the management of soil organic matter and residues and their role in the quality of the soil and the environment. He also develops academic and scientific activities that seek to evaluate the consequences of intensive soil use, together with the design and evaluation of more environmentally balanced agricultural systems, made possible through the understanding and application of concepts for reinforcing ecological processes and relationships. His expertise in the Brazilian semi-arid region has helped in generating data and in training people to work with both high and low external-input cultivation systems: irrigated systems, mixed cropping (agroforestry) systems, organic, and minimum tillage systems, all with a view to strengthening ecological processes and relationships. He has published 110 refereed journal papers, 18 book chapters and articles in proceedings, and edited 6 books.
Richard Bell, who has been Professor of Land Management at Murdoch University since 2007, is a specialist in soil fertility and crop management with lecturing and research experience in Australia, Bangladesh, Brazil, Cambodia, China, India, Indonesia, Fiji, Sri Lanka, Thailand and Vietnam. His interests are in management and fertility constraints associated with sandy, acid, salt-affected and degraded soils; nutrient cycling in farmland, rehabilitated land and forests; rehabilitation of degraded land; sustainable agricultural systems; Conservation Agriculture, and research for agricultural development. He has authored 222 refereed journal papers, 101 book chapters and articles in proceedings, and edited 15 books. Much of his published work has concerned the mineral nutrition of crop and plants and cropping systems intensification for smallholder farms. He has led and collaborated on international projects in Thailand (1984-89), China (1992-97), Cambodia (2004-present), Bangladesh (2006-present), Vietnam (2007-2019), India (2015-present) and Laos (2017-present). He has supervised 70 PhD and MSc students.
Klappentext
The concept is that plant growth is often restricted by adverse physical and chemical properties of subsoils yet these limitations are not revealed by testing surface soils and hence their significance in crop management is often overlooked.
The major constraints can be physical or chemical. The physical limitations comprise: poor/nil subsoil structure or dense pans so roots can not penetrate subsoil; very sandy subsoils that do not provide adequate water or very gravelly subsoils and; high water table, etc.
Chemical constraints include acidity/alkalinity, high extractable Al or Mn, low nutrient availability, salts, boron toxicity and pyritic subsoils.
Some of these constraints are inherent properties of the soil profile while others are induced by crop and soil management practices.
For all these constraints the emphasis within chapters is on defining the constraint, and discussing amelioration practices and benefits.
Inhalt
Content
Preface
List of Contributors
Table of Contents
By Teogenes Senna de Oliveira and Richard Willian Bell
By Carlos Ernesto Gonçalves Reynaud Schaefer*, José João Lelis Leal de Souza, Fábio Soares de Oliveira, Guilherme Resende Corrêa and Elpídio Inácio Fernandes Filho
By Clayton Robert Butterly*, Telmo Jorge Carneiro Amado and Caixian Tang
By Pichu Rengasamy*, Claudivan Feitosa de Lacerda and Hans Raj Gheyi
By José João Lelis Leal de Souza* and Walter Antônio Pereira Abrahão
By Teogenes Senna de Oliveira* and Raphael Bragança Alves Fernandes
By Hwat Bing So*, Ivo Ribeiro da Silva, Lucas Carvalho Gomes and Teogenes Senna de Oliveira
By Craig A. Scanlan*, Karen W. Holmes and Richard W. Bell
By Andréa Bittencourt Moura*, David Backhouse, Ismail Teodoro de Souza Júnior and César Bauer Gomes
By Mirian Cristina Gomes Costa* and Ítalo Antônio Cotta Coutinho
By Bruno Coutinho Moreira, Paulo Prates Júnior, Bernard Dell and Maria Catarina Megumi Kasuya*
By Qifu Ma*, Richard Willian Bell and Edson Marcio Mattiello
By Wendy H Vance* and Stephen P Milroy
By Podjanee Sangmanee, Bernard Dell, David Henry and Richard Harper*
By Carlos Ernesto Gonçalves Reynaud Schaefer and Fábio Soares de Oliveira
By Richard Willian Bell and Teogenes Senna de Oliveira
Index