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Advances in agronomy. Volume 132 /

Advances in Agronomy continues to be recognized as a leading reference and a first-rate source for the latest research in agronomy. Each volume contains an eclectic group of reviews by leading scientists throughout the world. As always, the subjects covered are varied and exemplary of the myriad of...

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Detalles Bibliográficos
Clasificación:Libro Electrónico
Autor principal: Sparks, Donald L. (Autor)
Formato: Electrónico eBook
Idioma:Inglés
Publicado: Waltham, MA : Academic Press, [2015]
Edición:First edition.
Colección:Advances in Agronomy.
Temas:
Acceso en línea:Texto completo
Tabla de Contenidos:
  • ""Front Cover""; ""Advances in Agronomy""; ""Advances in AGRONOMY ""; ""Copyright ""; ""Contents""; ""Contributors""; ""Preface""; ""Wetland Restoration and Creation for Nitrogen Removal: Challenges to Developing a Watershed-Scale Approach in the Chesapeak ...""; ""1. Introduction""; ""2. Biological and Physical Challenges""; ""2.1 Subsurface Connectivity between Nitrogen Sources and Wetlands""; ""2.1.1 Proposed Approach""; ""2.1.1.1 Assessing Hydrologic Connectivity in Areas with Artificial Drainage""
  • ""2.1.1.2 Catchment-Scale Studies of Hydrogeomorphic Predictions of Hydrologic Connectivity""""2.1.1.3 Improved Use of Geospatial Data for Predicting Subsurface Connectivity between N Sources and Wetlands""; ""2.1.1.3.1 Expanded Use of LiDAR Data and Topographic Indices Derived from LiDAR""; ""2.1.1.3.2 Better Use of Soil Data""; ""2.1.1.3.3 Incorporation of Ditch Network Data""; ""2.1.1.3.4 Incorporation of Remote- and Ground-Based Sensor Techniques for Measuring Variability in Soil and Vegetation Characteristics""; ""2.2 Estimating Wetland Efficiencies""; ""2.2.1 Proposed Approach""
  • ""3. Political, Social, and Economic Challenges""""3.1 Limited Information on Current Wetland Practices""; ""3.1.1 Proposed Approach""; ""3.2 Broad/Unclear Objectives of Wetland BMPs""; ""3.2.1 Proposed Approach""; ""3.3 Landowner Willingness to Adopt""; ""3.3.1 Proposed Approach""; ""4. Conclusions""; ""Acknowledgments""; ""References""; ""Nitrogenous Gas Emissions from Soils and Greenhouse Gas Effects""; ""1. Overview of Nitrogen Cycle""; ""2. The Contribution of Agriculture to Atmospheric N Gases (NO2, NO, N2O)""; ""2.1 Atmospheric Fates and Consequences of N Gases""
  • ""3. Forms, Sources, and Pathways of N Gases""""3.1 Biological Nitrification and Denitrification�a�?Physical Factors and Biological Processes""; ""3.2 Conceptual Models: How Factors, Processes, and Levels Regulate N Gas Emission from Soil Hole-In-Pipe Model""; ""3.2.1 N Gas Emission as Function of Soil Pore Space Properties""; ""3.2.2 N Gas Emission as Function of Temperature""; ""4. Role of Agricultural Management Practices""; ""4.1 Synthetic Fertilizers""; ""4.1.1 Synthetic Fertilizers�a�?Rate and Type or Formulation""; ""4.1.2 Synthetic Fertilizers�a�?Time of Application""
  • ""4.1.3 Synthetic Fertilizers�a�?Effects on Microorganisms""""4.2 Crop Residues and Organic Amendments""; ""4.3 Tillage and Residue Management""; ""4.4 Cropping Systems with Legumes""; ""4.5 Rotation""; ""4.6 Irrigation and Drainage""; ""5. Agronomic Assessment of N Gas Emissions and Broader Environmental Context of N Fertilizers""; ""5.1 Yield-Scaled Emissions""; ""5.2 Fertilizer Use and Efficiency in Developing versus Developed Countries""; ""6. Mitigation Strategies""; ""6.1 Management Options for Reducing N Gas Emission from Soil""; ""6.2 Improved Manure Management""