Soil Plant Nitrogen Relationships

Nitrogen in the Environment, Volume 2: Soil-Plant-Nitrogen Relationships is the second of a two-volume treatise based on manuscripts presented at the international conference on ""Nitrogen in the Environment,"" held at the University of California Conference Center, Lake Arrowhead, in February, 1977. All original manuscripts were revised in accordance with discussions at the conference. The chapters published in these volumes are those revised manuscripts, with provisions in each chapter to preserve the major suggestions for their improvement. These two volumesNitrogen Behavior in Field Soil and Soil-Plant-Nitrogen Relationshipsshould be of value in bringing into perspective current knowledge on selected aspects of nitrogen in the environment. The book contains 22 chapters and opens with a study on the factors influencing nitrate acquisition by plants; assimilation and fate of reduced nitrogen. Separate chapters follow on topics such as absorption and utilization of ammonium nitrogen by plants; potential nitrate levels in edible plant parts; control of biological nitrogen fixation; and methods for analysis of denitrification in soils.

Soil Remediation and Plants

The soil is being contaminated continuously by a large number of pollutants. Among them, heavy metals are an exclusive group of toxicants because they are stable and difficult to disseminate into non-toxic forms. The ever-increasing concentrations of such pollutants in the soil are considered serious threats toward everyones health and the environment. Many techniques are used to clean, eliminate, obliterate or sequester these hazardous pollutants from the soil. However, these techniques can be costly, labor intensive, and often disquieting. Phytoremediation is a simple, cost effective, environmental friendly and fast-emerging new technology for eliminating toxic heavy metals and other related soil pollutants. Soil Remediation and Plants provides a common platform for biologists, agricultural engineers, environmental scientists, and chemists, working with a common aim of finding sustainable solutions to various environmental issues. The book provides an overview of ecosystem approaches and phytotechnologies and their cumulative significance in relation to solving various environmental problems.

Soil Respiration and the Environment

The global environment is constantly changing and our planet is getting warmer at an unprecedented rate. The study of the carbon cycle, and soil respiration, is a very active area of research internationally because of its relationship to climate change. It is crucial for our understanding of ecosystem functions from plot levels to global scales. Although a great deal of literature on soil respiration has been accumulated in the past several years, the material has not yet been synthesized into one place until now. This book synthesizes the already published research findings and presents the fundamentals of this subject. Including information on global carbon cycling, climate changes, ecosystem productivity, crop production, and soil fertility, this book will be of interest to scientists, researchers, and students across many disciplines.

Soil Structure/Soil Biota Interrelationships

Some pioneers in soil research such as Mller and Kubina were as much biologists as they were soil scientists and the legendary biologist Charles Darwin was foresighted in recognizing the earthworms as instrumental in reworking the soil, thereby forming what he called "vegetable mould". Still, soil science has largely been the realm of physicists and chemists over the past decades. Whatever the reason, this picture is rapidly changing. Until recently, research on the transport and transformation of elements in soil was often concerned with either soil biota/plant relationships or with soil structure/plant relationships, if the biota were considered at all, but very few studies explicitly took the interrelationships between soil structure and soil biota into account. The conference on Soil Structure/Soil Biota Interrelationships, held at Wageningen, The Netherlands, 24-28 November 1991, was meant to bridge that gap, focussing on methods of research, organized in three levels: features, processes and effects. The proceedings of the conference are testimony of the need to intertwine the biological, morphological, physical and chemical disciplines in soil research to understand better and forecast soil properties and processes as related to land use for agricultural and other purposes. This book should be of particular interest to soil scientists and ecologists who feel the need for a cross-disciplinary approach in soils research. It should also be a rich source of teaching material for courses in soil science and soil ecology at graduate level and above, with ample reference to studies on land use as related to agriculture and the environment.

Soil Water Measurement Plant Responses and Breeding for Drought Resistance

Water Deficits and Plant Growth, Volume IV: Soil Water Measurement, Plant Responses, and Breeding for Drought Resistance explores the physiological effects of water deficits on plants and their implications on crop yield, water use, and drought resistance. This book also considers drought-resistance measurements and their application to breeding programs. This volume is organized into eight chapters and begins with an overview of measurement of soil water content and the state of water in soils. Particular emphasis is placed on methods developed from technological advances. The next two chapters focus on the structure and functioning of stomata and stomatal conductance in control of gas exchange. The discussion then shifts to the effects of water supply on photosynthesis, leaf shedding, flow of latex, and nitrogen-fixing root nodules. The final chapter is a comprehensive treatment of plant breeding for drought resistance, emphasizing breeding and testing methods as well as parameters and application to breeding programs of drought resistance. This book is a valuable resource for scientists and investigators in fields such as botany, agronomy, forestry, agriculture, and biology.

Soil Water Repellency

It has become clear that soil water repellency is much more wide-spread than formerly thought. Water repellency has been reported in most continents of the world for varying land uses and climatic conditions. Soil water repellency often leads to severe runoff and erosion, rapid leaching of surface-applied agrichemicals, and losses of water and nutrient availability for crops. At present, no optimum management strategies exist for water repellent soils, focusing on minimizing environmental risks while maintaining crop production. The book starts with a historical overview of water repellency research, followed by seven thematic sections covering 26 research chapters. The first section discusses the origin, the second the assessment, and the third the occurrence and hydrological implications of soil water repellency. The fourth section is devoted to the effect of fire on water repellency, section five deals with the physics and modeling of flow and transport in water repellent soils, section six presents amelioration techniques and farming strategies to combat soil water repellency, and section seven concludes the book with an extensive bibliography on soil water repellency.

Soil, Fertilizer, and Plant Silicon Research in Japan

Silicon (Si) plays a significant role in the resistance of plants to multiple stresses including biotic and abiotic stresses. Silicon is also the only element that does not damage plants when accumulated in excess. However, the contribution of Si to plant growth has been largely ignored due to its universal existence in the earth's crust. From numerous intensive studies on Si, initiated in Japan about 80 years ago, Japanese scientists realized that Si was important for the healthy growth of rice and for stability of rice production. In a worldwide first, silicon was recognized as a valuable fertilizer in Japan. The beneficial effects of Si on rice growth in particular, are largely attributable to the characteristics of a silica gel that is accumulated on the epidermal tissues in rice. These effects are expressed most clearly under high-density cultivation systems with heavy applications of nitrogen. Si is therefore recognized now as an ''agronomically essential element'' in Japan. Recently, Si has become globally important because it generates resistance in many plants to diseases and pests, and may contribute to reduced rates of application of pesticides and fungicides. Silicon is also now considered as an environment-friendly element. The achievements of Si research in Japan are introduced in this book, in relation to soils, fertilizers and plant nutrition.

Soilless Culture: Theory and Practice

Plant production in hydroponics and soilless culture is rapidly expanding throughout the world, raising a great interest in the scientific community. For the first time in an authoritative reference book, authors cover both theoretical and practical aspects of hydroponics (growing plants without the use of soil). This reference book covers the state-of-the-art in this area, while offering a clear view of supplying plants with nutrients other than soil. Soilless Culture provides the reader with an understanding of the properties of the various soiless media and how these properties affect plant performance in relation to basic horticultural operations, such as irrigation and fertilization. This book is ideal for agronomists, horticulturalists, greenhouse and nursery managers, extension specialists, and people involved with the production of plants.

Sorghum Biochemistry: An Industrial Perspective

"Sorghum Biochemistry: An Industrial Perspective explores the many uses for sorghum in industry and biofuels. Not only does it offer a detailed understanding of the physical and biochemical qualities of the grain, it also takes an in-depth look at the role sorghum plays in such industries as brewing and ethanol production and the mechanics of post-harvest processing and value addition. Sorghum has long been an important staple in Africa and Asia, but its value goes far beyond its uses in human and animal consumption. Sorghum is also used in many industries, including waxes, packing material, wall board, ethanol, beverages, and brewing, and one variety called sweet sorghum has also been used as a bioenergy crop. Sorghum Biochemistry: An Industrial Perspective offers a closer look at how the grain is used in such a variety of ways, and how we can continue to optimize its potential. Key Features. Provides detailed biochemical studies on grain sorghum to inform researchers grappling with similar issues. Offers foundational information on the quality and composition of sorghum as a grain. Covers a variety of uses for sorghum in many industries, including food and beverage, energy, and brewing. Includes photos and illustrations to enhance the understanding of processes and sorghum biochemistry"

South African Journal of Botany

Agricultural and Biological Sciences

Sperm Competition and the Evolution of Animal Mating Systems

Sperm Competition and the Evolution of Animal Mating Systems describes the role of sperm competition in selection on a range of attributes from gamete morphology to species mating systems. This book is organized into 19 chapters and begins with the conceptualization of sperm competition as a subset of sexual selection and its implications for the insects. The following chapter describes the relationship between multiple mating and female fitness, with an emphasis on determining the conditions under which selection on females is likely to counteract selection on males for avoiding sperm competition. Other chapters consider the female perspective on sperm competition; the evolutionary causation at the level of the individual male gamete; and the correlation of high paternal investment and sperm precedence in the insects. The remaining chapters are arranged phylogenetically and explore the sperm competition in diverse animal taxa, such as the Drosophila, Lepidoptera, spiders, amphibians, and reptiles. These chapters also cover the evolution of direct versus indirect sperm transfer among the arachnids or the problem for kinship theory presented by multiple mating and sperm competition in the Hymenoptera. This book further discusses the remarkable potential for sperm competition among certain temperate bat species whose females store sperm through winter hibernation and the mixed strategies and male-caused female genital trauma as possible sperm competition adaptations in poeciliid fishes. The concluding chapter examines the predictions concerning testes size and mating systems in the primates and the possible role of sperm competition in human selection. This book is of great value to reproductive biologists and researchers.

Spontaneous Animal Models of Human Disease

This two-volume work gathers together the diverse information presently available on spontaneous animal models of human disease. In addition to providing a comprehensive review of existing models, the book presents many previous unpublished new models.The scope of this work is limited to spontaneous models. Neoplasia, infectious diseases including parasitism, and nutritionally induced or other types of experimental models have not been included. The sixteen parts of the book are alphabetically arranged according to organ system with over 230 authors contributing to the overall effort. In addition to many illustrations, the book features an extensive bibliography.

Stable Isotopes and Plant Carbon-water Relations

This 33-chapter volume presents a critical examination of the importance of stable isotopes in understanding key plant metabolic processes.

Statistics for Food Scientists

"The practical approached championed in this book have led to increasing the quality on many successful products through providing a better understanding of consumer needs, current product and process performance and a desired future state. In 2009, Frank Rossi and Viktor Mirtchev brought their practical statistical thinking forward and created the course Statistics for Food Scientists. The intent of the course was to help product and process developers increase the probability of their projects success through the incorporation of practical statistical thinking in their challenges. The course has since grown and has become the basis of this book. Key Features. Presents detailed descriptions of statistical concepts and commonly used statistical tools to better analyze data and interpret results. Demonstrates thorough examples and specific practical problems of what food scientists face in their work and how the tools of statistics can help them to make more informed decisions. Provides information to show how statistical tools are applied to improve research results, enhance product quality, and promote overall product development"

Steroids

Biochemistry, Genetics and Molecular Biology

Still Going Wrong!: Case Histories of Process Plant Disasters and How They Could Have Been Avoided

This is Trevor Kletz's follow up to his extremely successful What Went Wrong Case Histories of Process Plant Disasters. In it, Kletz reinforces the messages in his now-classic book of famous case histories, but the majority of the book covers points not covered in the original. This new volume will focus more on procedural changes that can be made, not only at the technical or engineering levels, but at the managerial level, to prevent disasters from happening. Key Features * This volume follows up on the cases and strategies outlined in the original million-dollar seller: "What Went Wrong"* Contains many new cases and areas for improvement, including the hazards of rust, corrosion, and many more new topics* Written by the world's leading expert on industrial safety

Subcellular Biochemistry and Molecular Biology

The Biology of Euglena, Volume IV: Subcellular Biochemistry and Molecular Biology focuses on the subcellular biochemistry and molecular biology of eukaryotic microorganisms that belong to the genus Euglena, including Euglena gracilis. It investigates enzymes and their functional location in Euglena cells, along with subcellular particles, the nucleus, the mitochondria, the chloroplast protein synthesis and chloroplast DNA, and the microbodies and lysosomes of Euglena. Organized into eight chapters, this volume begins with an overview of techniques in determining the location of enzymes and in isolating organelles in Euglena. It then proceeds with a discussion of the nucleus, its ultrastructure and macromolecules, and chromatin organization. The next chapters examine the morphology and ultrastructure of mitochondria, the morphology and biogenesis of microbodies and lysosomes, the nuclear-cytoplasmic interaction, and the structure and physicochemical properties of chloroplast DNA. The last two chapters consider the ribosomal RNAs of Euglena and the organization and activities of cytoplasmic, mitochondrial, and chloroplast ribosomes and polyribosomes, along with its polyadenylated and messenger RNA. This book will be of interest to biochemists, molecular biologists, botanists, and plant geneticists.

Subviral Pathogens of Plants and Animals: Viroids and Prions

Subviral Pathogens of Plants and Animals: Viroids and Prions is organized into four parts consisting of a total of 20 chapters that discuss the nature of subviral pathogens of plants and animal. This book first elucidates the recognition of subviral pathogens, and then explores the host range of viroids and its diseases. It also addresses the control of viroid diseases. The book explains the structure and replication of viroids. Lastly, it centers on the structure and biology of prions, as well as the diseases these pathogens cause. This treatise will be of considerable scientific interest and importance to those in the field of human and veterinary medicine, virology, zoology, microbiology, plant pathology, entomology, as well as other branches of biology.