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Advances in Agronomy continues to be recognized as a leading reference and first-rate source for the latest research in agronomy. Each volume contains an eclectic group of reviews by leading scientists throughout the world. As always, the subjects covered are rich, varied and exemplary of the abundant subject matter addressed by this long-running serial. - Includes numerous, timely, state-of-the-art reviews on the latest advancements in agronomy - Features distinguished, well recognized authors from around the world - Builds upon this venerable and iconic review series - Covers the extensive variety and breadth of subject matter in the crop and soil sciences

A practical guide that explains how we can design roads that are compatible with populations of small wildlife.Few of us think twice about driving on roads. Yet the very presence of roads and the act of driving on them can impact the ecological infrastructure that supports an animal's daily life. What chance does a turtle have of successfully laying its eggs when it needs to traverse a busy highway? Is it realistic to expect small mammals to breed when an interstate thoroughfare subdivides their population? These are the sorts of challenges faced by small, often slow-moving, animals, challenges that road engineers and ecologists are trying to address.For countless small species, vehicles traveling at high speeds are nothing less than missiles shooting across migration pathways. For too many animals, the danger can lead to the loss of populations, in part because they simply are not programmed to react to traffic. Salamanders faced with a two-lane road between the forest and their aquatic breeding site, for example, will typically cross that road regardless of the congestion. The result can be hundreds of flattened animals in a single night.Roads and Ecological Infrastructure is the first book to focus on reducing conflict between roads and small animals. Highlighting habitat connections and the challenges and solutions from both transportation and ecological perspectives, the volume covers various themes, including animal behavior related to roads and design approaches to mitigate the negative effects of roads on wildlife. The chapter authors—from transportation experts to university researchers—each promote a goal of realistic problem solving. Conceptual and practical, this book will influence the next decade or more of road design in ecologically sensitive areas and should prevent countless unnecessary wildlife fatalities.Published in association with The Wildlife Society.

I intend to fill, with this book, a need that has long been felt by students and professionals in many areas of agricultural, biological, natural, and environmental sciences-the need for a comprehensive reference book on many important aspects of trace elements in the'land'environment. This book is different from other books on trace elements (also commonly referred to as heavy metals) in that each chapter focuses on a particular element, which in tum is discussed in terms of its importance in our economy, its natural occurrence, its fate and behavior in the soil-plant system, its requirement by and detriment to plants, its health limits in drinking water and food, and its origin in the environment. Because of long­ distance transport to pristine areas of cadmium, lead, copper, and zinc in relatively large quantities, these elements have an extra section on natural ecosystems. A blend of pictorial and tabular data are provided to enhance understanding of the relevant information being conveyed. Since individual chapters are independent of one another, they are arranged alphabetically. However, readers with weak backgrounds in soil science are advised to start with the chapter on zinc, since soil terminology is discussed in more detail here. Sections on sorption, forms and speciation, complexation, and transformations become more technical as soil physical-(bio)chemical phenomena are discussed. The less important'environmental'trace elements are discussed together in the'Other Trace Elements'chapter.

Potato is the fourth major staple food in the world and is still rapidly gaining importance, especially in the tropics. In May, 1994 the second international potato modelling conference was held in Wageningen, the Netherlands, as a summerschool of the C. T. de Wit Graduate School. The conference was sponsored by DLO, SCRI, SSCR, W AU and the LEB-Fund. Over 80 scientists participated, coming from 16 countries. Of each crop physiological and modelling subject, a leading scientist was requested to write a review of the most recent developments in his or her field. The reviews, with highlights from the authors'own work, are such that the physiological work described is of interest to the modeller and the modelling work to the crop physiologist. Applications of the quantitative approach are also reviewed in the concluding chapters that deal with decision support systems, breeding and agro-ecological zoning. An outstanding point of this book is that both the crop ecology and the modelling of a broad range of biotic and abiotic factors are treated by scientists representing groups which are specialized in the subject. The two related disciplines met during the conference and thus wrote the chapters with each other's interest in mind. The book highlights the limitations for potato growth and development from the viewpoints of both the crop physiologist and the crop-systems analyst.

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. It was at that first conference where the decision was made to hold the second Conference in Egypt and so near the ancestral home of these food legume crops. It has been a long held view that the cool season food legumes had their origin in the Mediterranean basin and the Near-east arc, and there is little doubt that food legumes were a staple food of the ancient Egyptian civilization. The cool season food legumes have the reputation for producing at least some yield under adverse conditions of poor fertility and limited moisture, i. e., in circumstances where other crops are likely to fail completely. Yields of cool season food legumes are particularly poor in those regions where they are most important to local populations. The influx of more profitable crops such as wheat, maize, and soybeans have gradually relegated the food legumes to marginal areas with poor fertility and limited water which exposes them to even greater degrees of stress. In the past two decades, production of food legumes has declined in most of the developing countries while at the same time it has expanded greatly in Canada, Australia, and most notably in Turkey.

The proposal for this series originated during a short term visit of Professor Mukerji to the Plant Protection Institute of CNR at Bari, Italy, in November 2005. Both editors agreed on the need to produce a volume focusing on recent advances and achievements which changed the practice of crop protection in the last decade. The opera rapidly evolved towards a long term editorial endeavour, yielding a mul- disciplinary series of five volumes. In view of environmental and health concerns, a determined effort is currently made in almost any agroecosystem in the world, to reduce and rationalize the use of chemicals (pesticides, fungicides, nematocides etc.) and to manage pests/pathogens more effectively. This consciousness is not only related to the need of nourishing a still growing world population, but also derives from the impact of side effects of farming, like soil, water and environmental contamination, calling for a responsible conservation of renewable resources. There are increasing expectations at the producers and consumers levels, concerning low inputs agriculture and residues-free food. Disciplines like IPM/IDM (integrated pest management / integrated disease management) are now central to the science and technology of crop protection. In the classical version of IPM/IDM, a pesticide/fungicide is applied only when the pathogen population reaches a level that would lead to economic losses in the crop. In other words, classical IPM/IDM concentrates on reducing the numbers of noxious organisms through the application of agrochemicals.

Volume 54 contains seven reviews covering key contemporary topics in the crop and soil sciences. The connections between agricultural practice and environmental impact are addressed in chapters on subsurface microbial ecology, herbicide-resistant field crops, and nitrification inhibitors. Also among this collection are reviews on the microbial reduction of iron, manganese, and other metals; acid tolerance of wheat; lentil breeding and production; and the use of apomixis in cultivar development. With this latest volume, Advances in Agronomy continues to be recognized as a prolific and first-rate reference by the scientific community. In 1993 Advances in Agronomy increased its publication frequency to three volumes per year, and will continue this trend as our breadth of agronomic inquiry and knowledge continues to grow. - Impact of agriculture on subsurface microbial ecology - Herbicide-resistant crops - Microbial reduction of iron, manganese, and other metals - Nitrification inhibitors - Apomixis in cultivar development