Advances in Soil Science

References1.- Water Erosion and Water Quality.- I. Introduction.- II. Impacts.- III. Prediction.- IV. Research Needs.- V. Summary.- References.- Wind Erosion: Mechanics, Prediction, and Control.- I. Introduction.- II. Basic Wind Erosion Process.- III. Extent of Problem.- IV. Deposition of Eroded Material.- V. Impact on Soil Productivity.- VI. Wind Erosion Control.- VII. Conclusions.- References.- Methods for Removing Spatial Variability from Field Research Trials.- I. Introduction.- II. Experimental Design.- III. Methods of Statistical Analysis.- IV. Explicit Trend Analysis and Removal.- V. Comparison of Methods.- VI. Summary.- References.- Diseases Caused by Root-Infecting Pathogens in Dryland Agriculture.- I. Introduction.- II. Etiology.- III. Epidemiology.- IV. Host Range and the Effects of Crop Rotations.- V. Tillage and Crop Residue Management.- VI. Strategies and Approaches to Economic Control.- VII. Research Needs.- VIII. Epilog.- References.- The Role of Soil Biodiversity in Sustainable Dryland Farming Systems.- I. Introduction.- H. Diversity/Erodibility Relationships.- III. Early Bioindicators of Soil Degradation.- IV. Measurements to Characterize Biodiversity.- V. Implications for Conservation of Marginal Lands.- VI. Future Research Needs.- References.- Managing Crop Residues to Optimize Crop/Livestock Production Systems for Dryland Agriculture.- I. Introduction.- II. Available Water and Crop Yields.- III. Value of Crop Residues for Water Conservation.- IV. Effect of Surface Residue Management on Crop Yields.- V. Value of Crop Residues for Erosion Control.- VI. Progresswith Residue Management Systems.- VII. Conservation Management and Water Quality.- References.- Agroclimatic Approaches for Improving Agricultural Productivity in Semiarid Tropics.- I. Introduction.- II. Agroecological Features of the Semiarid Tropics.- III. The Indian SAT.- IV. The Sahelian SAT.- V. Botswana SAT.- VI. Summary and Conclusions.- References.- An Economic Analysis of Farm Management Practices and Improved Technologies in the Sahel.- I. Introduction.- II. Farming Conditions in Mali.- III. Technological Options for Dryland Farming.- IV. Soil, Water, and Crop Management Case Studies.- V. Case Study Results.- VI. Conclusions.- References.- Use of Crop Simulation Models in Dryland Agriculture.- I. Introduction.- II. Evaluation of New Crops in Australia.- III. Application of Grain Sorghum Simulation Models in Central Texas.- IV. Future Trends in Model Use.- References.- Strategies for Increasing the Productivity and Stability of Dryland Farming Systems.- I. Introduction.- II. Successful Dryland Regions.- III. Dryland Technologies.- IV. Research and Technology Transfer.- V. Research Needs.- VI. A Strategy for Achieving Improved Dryland Production.- References.