Biological basis, physical environment, and crop productivity; Growth and yield of field crops; Crop productivity under different environments; Increasing productivity through cropping systems.

Volume 65 contains six reviews covering key contemporary topics on crop and soil sciences. The topics are varied and exemplary of the array of subjects dealt with by this long-running serial. With this latest volume, Advances in Agronomy continues to be recognized as a leading reference and a first-rate source of the latest and best research in agronomy. - Advances in Fertigation - The Genetics, Pathology, and Molecular Biology of T-Cytoplasm Male Sterility in Maize - Application of Capillary Electrophoresis to Anion Speciation in Soil Water Extracts - Advances in Solution Culture Methods for Plant Mineral Nutrition Research - Radiation Use Efficiency - The Effects of Cultivation on Soil Nitrogen Mineralization

Employing nearly half of the world's workforce, agriculture is clearly of great economic and social importance. An incredible variety of methods are used globally; the Western world has the latest scientific and industrial advancements at its disposal, yet in the Thrid World a living is made using tools that have hardly changed in two thousand years. An Introduction to Agricultural Geography provides an extensive guide through this diverse and increaslingly important geographical subject, aiming to show that a wide range of factors explain how agricultural practices differ from place to place. Dealing with the physical environment, economic behaviour and demands, institutional and social influences and the impact of farming upon the environment, the author has produced an important introductory text that is topical, incisive and ultimately essential to reach an understanding of the remarkable diversity of the world's major industry.

This 33-chapter volume presents a critical examination of the importance of stable isotopes in understanding key plant metabolic processes. - Carbon isotope analyses for estimates of plant water use and metabolism - Integrated estimates of stress impacts and life history in ecological systems - Hydrogen and oxygen isotope analyses for evaluating water sources and transpiration - Use of stable isotopes in scaling from leaf to global levels - Sections include: History and Theoretical Considerations, Ecological Aspects of Carbon Isotope Variation, Agricultural Aspects of Carbon Isotope Variation, Genetics and Isotopic Variation, Water Relations and Isotopic Composition

A reference text with the latest information and research for educators, students, and researchers! World hunger and malnutrition remain an alarming concern that spurs researchers to develop quality technology. The Handbook of Seed Science and Technology is an extensive reference text for educators, students, practitioners, and researchers that focuses on the underlying mechanisms of seed biology and the impact of powerful biotechnological approaches on world hunger, malnutrition, and consumer preferences. This comprehensive guide provides the latest available research from noted experts pointing out the likely directions of future developments as it presents a wealth of seed biology and technological information. Seed science is the all-important foundation of plant science study. The Handbook of Seed Science and Technology provides an integrative perspective that takes you through the fundamentals to the latest applications of seed science and technology. This resource provides a complete overview, divided into four sections: Seed Developmental Biology and Biotechnology; Seed Dormancy and Germination; Seed Ecology; and Seed Technology. The Handbook of Seed Science and Technology examines: the molecular control of ovule development female gametophyte development cytokinins and seed development grain number determination in major grain crops metabolic engineering of carbohydrate supply in plant reproductive development enhancing the nutritive value of seeds by genetic engineering the process of accumulation of seed proteins and using biotechnology to improve crops synthetic seeds dormancy and germination hormonal interactions during dormancy release and germination photoregulation of seed germination seed size seed predation natural defense mechanisms in seeds seed protease inhibitors soil seed banks the ecophysiological basis of weed seed longevity in the soil seed quality testing seed vigor and its assessment diagnosis of seed-borne pathogens seed quality in vegetable crops vegetable hybrid seed production practical hydration of seeds of tropical crops seed technology in plant germplasm The Handbook of Seed Science and Technology is extensively referenced and packed with tables and diagrams, and makes an essential source for students, educators, researchers, and practitioners in seed science and technology.