Significant advancements have been made in pathogen detection technologies during the last decade. Indexing of plants and plant parts for the presence of specific pathogens has been most effective in some instances for avoiding and/or controlling disease. The new technologies for detecting low levels of pathogens will increase the value of indexing as a tool for plant disease control. Providing an overview of the status of detection technology, this volume is directed not only to scientists and students interested in detection technology, but also to those interested in formulating and implementing disease control and quarantine regulations. This book provides a conceptual framework which presents the current scientific literature, state-of-the-art assessments, and speculations on future developments and requirements of pathogen indexing methods. Chapters cover the different pathogen groups, review current practices in areas where detection technology has become important, and provide perspectives on how indexing technologies can be applied, how well it has worked, and which problems remain. Statistical treatment of detection limits, sampling strategies, risk assessment, cost, standardization, and quality control are also covered.

Significant advancements have been made in pathogen detection technologies during the last decade. Indexing of plants and plant parts for the presence of specific pathogens has been most effective in some instances for avoiding and/or controlling disease. The new technologies for detecting low levels of pathogens will increase the value of indexing as a tool for plant disease control. Providing an overview of the status of detection technology, this volume is directed not only to scientists and students interested in detection technology, but also to those interested in formulating and implementing disease control and quarantine regulations. This book provides a conceptual framework which presents the current scientific literature, state-of-the-art assessments, and speculations on future developments and requirements of pathogen indexing methods. Chapters cover the different pathogen groups, review current practices in areas where detection technology has become important, and provide perspectives on how indexing technologies can be applied, how well it has worked, and which problems remain. Statistical treatment of detection limits, sampling strategies, risk assessment, cost, standardization, and quality control are also covered.

The current level of food safety found in U.S. meat and poultry food products is a result of process and performance regulations and management-determined actions (MDA) brought about by market incentives. Processing regulations (PR) include sanitation and other tasks related to food safety; MDA include capital investment and other actions independent of process regulations, but possibly driven by performance standards. This study used the share of samples testing positive for Salmonella spp. as a measure of food safety process control in meat and poultry processing plants and found that MDA account for 2/3 of the reduction in samples testing positive for Salmonella spp., while PR account for 1/3 of the reduction. Charts and tables.

Learn the fundamentals as well as in-depth details of agricultural cropping systems from around the globe! Cropping Systems: Trends and Advances is a comprehensive review of past and present research efforts in North America and other parts of the world. It brings together biological, economic, sociological, and technical aspects of cropping systems in a single source to provide a reference unlike any other on the subject that is available today. This valuable book also points to future directions that cropping systems research needs to take in order to increase sustainable agriculture and feed the growing world population. Charts, tables, and illustrations make the information easy to access and understand. An ideal textbook for graduate and undergraduate courses in agronomy as well as a comprehensive reference for professionals involved in cropping systems research, Cropping Systems: Trends and Advances is a book you’ll refer to again and again. Topics covered in this well-referenced and thoughtfully indexed book include: emerging trends in cropping systems research designing resource-efficient cropping systems soil quality and fertility tillage root dynamics water quality concerns nitrogen use efficiency precision agriculture agricultural biotechnology weed biology and management integrated pest management the important role that cover crops can play key indicators for assessing nitrogen use efficiency in cereal-based agroecosystems the implications of elevated carbon dioxide-induced changes in agroecosystem productivity and a great deal more!