Agricultural science

Desertification (land degradation in arid, semi-arid and dry sub-humid areas resulting mainly from adverse human impacts) is the main environmental problem of dry lands, which occupy more than 40 per cent of the total global land area.

The goal of the Second International Food Legume Research Conference held in Cairo, Egypt was to build on the success of the first conference held nearly 6 years earlier at Spokane, Washington, USA.

In December 1993, ISNAR, in collaboration with International Consortium for Application of Systems Approaches, organized a three-day workshop on systems approaches and modelling for agricultural development.

In a field of mature bananas, plants can be seen at all stages of vegetative growth and fruit maturity, providing a fascination for anyone who has an interest in growing crops.

A knowledge of clay is important in many spheres of scientific endeav- our, particularly in natural sciences such as geology, mineralogy and soil science, but also in more applied areas like environmental and mater- ials science.

The book covers the various aspects of the use of pesticides, their behavior, degradation, and impacts in wetland ricefields, and presents the results of surveys conducted in the Philippines and Thailand.

Environmental considerations are playing an increasingly important role in determining management strategies for soil and land.

Iron is a major constituent of the earth crust.

The sustainability of both natural and managed ecosystems is strongly influenced by soil biological processes.

Rural areas need to fulfil a large variety of functions and to accommodate many activities.

These volumes contain the proceedings of the Fifth FZK/TNO Conference on Contaminated Soil.

Towards sustainable land use Dr.

Water is vital to life, maintenance of ecological balance, economic development, and sustenance of civilization.

Water is vital to life, maintenance of ecological balance, economic development, and sustenance of civilization.

Water is vital to life, maintenance of ecological balance, economic development, and sustenance of civilization.

Nitrogen fixation research is presented as a rapidly developing, synergistic area of modern science, using the methods of, and accumulating data from, many fundamental branches of biology and chemistry.

For a long time microbial ecology has been developed as a distinct field with- in Ecology.

This Special Issue of Water, Air and Soil Pollution offers original contributions from BIOGEOMON, an international symposium on ecosystem behavior and the evaluation of integrated monitoring of small catchments, held in Prague, Czech Republic, in September 1993.

The understanding of plant-soil interactions in acid soils is important for improved food production in many parts of the world.

This publication presents the lectures given at the course on Advanced Separation Technology for Industrial Waste Minimization: Environmental and Analytical Aspects (13-15 October, 1992, Ispra, Italy) organized jointly by the Technical University of Lisbon, University of Calabria and the Environment Institute of the Joint Research Centre of the Commission of the European Communities at Ispra.

In the coming decades the world will need to more than double its food and feed production, almost all of the increase being needed in developing countries.

Collapsing engineering soils are a formidable hazard around the world.

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Dr Samuel Johnson, that famous eighteenth century lexicographer, said of oats 'A grain which in England is generally given to horses but in Scotland supports the people'.

Ladies a n d g e n t 1 e m e n , I have the pleasure to welcome you here in Prague in the name of the Czechoslovak Academy of Sciences and to open the Fifth Inter- national Colloquium on Soil Zoology.

Rice production is affected by changing climate conditions and has the dual role of contributing to global warming through emissions of the greenhouse gas methane.

Mathematical models are being increasingly used to estimate the concentrations of a wide range of substances in the environment for a variety of reasons, including government control and legislation, and risk and hazard estimation.

At the dawn of the 21st century, biotechnology is emerging as a key enabling technology for sustainable environmental protection and stewardship.

2 DANNY D.

Traditional reliance on chemical analysis to understand the direction and extent of treatment in a bioremediation process has been found to be inadequate.

Significant vulnerability of water systems to drought is a common issue of water resources management in Mediterranean regions.

Nowhere is the conflict between economic progress and environmental quality more apparent than in the mineral extraction industries.

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This volume contains a selection of papers presented at the Rothamsted Millennium Conference "e;Interactions in the Root Environment - an Integrated Approach"e;.

"e;Field screening"e; indicates field analytical tools, and (quick) methods and strategies for on-site or in-situ environmental analysis and assessment of contamination.

Coastal populations of shellfish have been exploited by humans for millennia as an easily accessible source of fresh protein.

Groundwater issues have generated worldwide concern in recent decades.

This is the 5th edition of a well-established book Principles of Plant Nutrition which was first published in 1978.

Coastal Conservation and Management provides the reader with a synthesis of the range and variation of the main coastal formations and includes practical guidance on their management.

This volume contains selected contributions from geoENV III - the Third European Conference on Geostatistics for Environmental Sciences, held in Avignon, France in November 2000.

Parasitic weeds of the families Cuscutaceae, Orobanchaceae and Scrophulariaceae are considered to be among the major problems facing agriculture in the Tropics and Subtropics.

Soil science in the Netherlands puts strong emphasis on the relationship between parent material and soil formation, and between physiographic conditions and land use.

During the past few years there has been a marked increase in the use of advanced chemical methods in studies of soil and clay mineral systems, but only a relatively small number of soil and clay scientists have become intimately associ- ated and acquainted with these new techniques.

The agricultural value of sewage sludges is well known and a lot of published data has demonstrated the positive effects of sludge appli- cations on plant growth and yield.

The present investigation was carried out in the period 1977-1981 at the Department of Soil Science and Plant Nutrition of the Agricultural University Wageningen, Netherlands.

The Symposium was organized by the Hungarian Ministry of Agriculture and the Central Research Institute for Chemistry of the Hungarian Academy of Sciences.

It is an established fact that we must continually increase and improve agricultural production if we are to meet even the minimum requirements of a growing popu- lation for food, shelter, and fuel.