Front Cover; Advances in Agronomy, Volume 60; Copyright Page; Contents; Contributors; Preface; Chapter 1. Nutrient Cycling, Transformations, and Flows: Implications for a More Sustainable Agriculture; I. Introduction; II. Framework for Evaluating Nutrient Dynamics; III. Soil-Plant System; IV. Cycling and Flows at the Field Level; V. Farm-Scale Cycling and Flows; VI. Watershed, Regional, and Global Issues; VII. Promoting a More Sustainable Agriculture through Changes Influencing Nutrient Cycles and Flows; VIII. Conclusions; References; Chapter 2. Adaptation of Plants to Salinity.
Chapter 4. Practical Ethics in Agronomic ResearchI. Introduction; II. Basic Concepts; III. Ethics of Choosing Research Subject Matter; IV. Difficulties with the Utilitarian Approach; V. Agricultural Ethics and the World Food Situation; VI. Ethics in the Conduct of Research; VII. Ethics in Research Administration; References; Chapter 5. Are Agroecosystems Sustainable in Semiarid Regions?; I. Introduction; II. Agroecosystems; III. Semiarid Regions; IV. The Issue of Sustainability; V. Technologies for Increasing Plant-Available Water; VI. Soil Organic Matter Maintenance; VII. Summary; References.
I. IntroductionII. Rationale for Breeding for Salt Tolerance; III. Selection for Salt Tolerance; IV. Salt Tolerance Mechanisms; V. Genetic Variability; VI. Breeding Methods; VII. Novel Concepts; VIII. Summary and Conclusions; References; Chapter 3. Influence of No-Till Cropping Systems on Microbial Relationships; I. Introduction; II. Decomposition of Surface-Managed Crop Residues; III. Modeling Crop Residue Decomposition; IV. Root-Microbial Relationships; V. Deleterious Rhizobacteria for Weed Control; VI. Low-Input, On-Farm Composting; References.
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Written by international authorities in agronomy, Volume 60 contains five comprehensive reviews covering key contemporary topics on plant and soil sciences. As always, the topics are varied and exemplary of the array of subject matter covered by this long-running serial. This volume contains a state-of-the-art review on adapting plants to salinity, the effects of no-tillage cropping systems on soil microbiological relationships, sustainability of agroecosystems in semiarid regions, ethics in agronomic research, and nutrient cycling information. With this latest volume, Advances in Agronomy continues to be recognized as a leading reference and as a first-rate source of the latest research in agronomy, crop science, and soil science. Key Features * Nutrient cycling, transformation and flows * Adaptation of plants to salinity * Practical ethics in agronomic research * The influence of no-till cropping systems on microbial relationships * The sustainability of agroecosystems in semiarid regions.