http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1 online resource (276 pages) : illustrations (some color), map.
Advances in Agronomy continues to be recognized as a leading reference and a first-rate source for the latest research in agronomy. As always, the subjects covered are varied and exemplary of the myriad of subject matter dealt with by this long-running serial. Maintains the highest impact factor among serial publications in agriculture Presents timely reviews on important agronomy issues Enjoys a long-standing reputation for excellence in the field.
Front Cover; Advances in Agronomy; Copyright; Contents; Contributors; Preface; Chapter One: Micronutrient Constraints to Crop Production in the Middle East-West Asia Region: Significance, Research, an ... ; 1. Introduction; 1.1. Awareness of micronutrients in the Middle East-West Asia region; 1.2. Milestones in micronutrient research; 2. Middle East-West Asia: An Overview; 2.1. Climate: Rainfall and temperature; 2.2. Land features and soils; 2.3. Farming systems and crops; 3. Soil Factors and Micronutrient Behavior; 3.1. Iron in soils and cropping implications.
3.1.1. Influence of carbonate chemistry3.1.2. Mineralogy and iron forms; 3.1.3. Soil properties as chlorosis indicators; 3.1.4. Iron fertilizers and soil reactions; 3.2. Zinc, copper, manganese, and boron; 4. Micronutrient Disorders: Diagnosis Approaches; 4.1. Crop sensitivity to micronutrient deficiencies; 4.2. Deficiency symptoms in common Middle East-West Asia crops; 4.3. Soil testing in the Middle East-West Asia region; 4.4. Plant analysis, a complement to soil testing; 4.5. Crop responses to micronutrients; 5. Micronutrient Research: Significance, Soil Behavior, and Crop Responses.
5.1. The intractable problem of iron5.2. Zinc, a serious regional concern; 5.3. Boron, too little or too much?; 5.3.1. Plant available boron; 5.3.2. Excess boron in soils; 5.3.3. Boron toxicity: Expanded treatment; 5.4. Manganese and copper: Minor concerns; 6. Managing Micronutrient Deficiencies; 6.1. Conventional approaches; 6.2. Biofortification, an emerging concept; 6.3. Fertilizer-use efficiency and residual effects; 6.4. Soil micronutrient budgets and balances; 6.5. Micronutrient content of crop seeds; 7. Future Research Needs; 8. Conclusions; Acknowledgments; References.
Chapter Two: Assessment and Modeling of Soil Available Phosphorus in Sustainable Cropping Systems1. Introduction; 2. Phosphorus in Agricultural Soils; 2.1. Importance of phosphorus in crop production; 2.2. Phosphorus cycle in the plant-soil system; 2.3. Definition of soil available phosphorus; 2.4. Factors affecting soil available phosphorus; 2.4.1. Soil properties; 2.4.2. Agricultural management; 2.4.3. Environmental conditions; 2.4.3.1. Effects of freezing and thawing cycles on soil available phosphorus; 2.4.3.2. Effects of drying and rewetting cycles on soil available phosphorus.
3. Soil Available Phosphorus Measurements3.1. Laboratory methods for assessing soil available phosphorus; 3.1.1. Chemical extraction methods; 3.1.2. Water extraction methods; 3.1.3. Phosphorus fractionation methods; 3.1.4. Optical measurements; 3.1.4.1. Near-infrared reflectance spectroscopy; 3.1.4.2. Electroultrafiltration; 3.2. In situ measurements of soil available phosphorus; 3.3. Isotopic dilution method to evaluate soil available phosphorus; 4. Modeling Soil Available Phosphorus.
edited by Donald L. Sparks, Department of Plant and Soil Sciences, University of Delaware, Newark, Delaware, USA.
Includes bibliographical references and index.