Advances in agronomy. Volume 106 /
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 a...
| Άλλοι συγγραφείς: | |
|---|---|
| Μορφή: | Ηλ. βιβλίο |
| Γλώσσα: | English |
| Έκδοση: |
Amsterdam ; Boston :
Elsevier,
2010.
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| Έκδοση: | 1st ed. |
| Σειρά: | Advances in Agronomy ;
v. 106. |
| Θέματα: | |
| Διαθέσιμο Online: | Full Text via HEAL-Link |
Πίνακας περιεχομένων:
- Front Cover; Advances in Agronomy; Copyright Page; Contents; Contributors; Preface; Chapter 1: Phosphorus Solubilization and Potential Transfer to Surface Waters from the Soil Microbial Biomass Following Drying-Rewetting and Freezing-Thawing; 1. Introduction; 1.1. Rationale; 1.2. Objective; 2. Factors Affecting Solubilization of Phosphorus from the Soil Microbial Biomass; 2.1. Primary solubilization processes; 2.2. Thresholds of solubilization; 2.3. Impacts on microbial communities; 3. Factors Controlling Transfer to Surface Waters; 3.1. Internal cycling of phosphorus.
- 3.2. Solubilization, mobilization and transfer of phosphorus4. Uncertainties; 4.1. Measurement of soil microbial biomass phosphorus; 4.2. Scales of measurement of impacts of abiotic perturbations; 4.3. Spatial variability of microbial phosphorus; 4.4. Relative contributions of sources of phosphorus in soil; 5. The Significance of Changing Climate and Soil Management; 6. Conclusions and Future Work; Acknowledgments; References; Chapter 2: Improving Productivity of Crops in Water-Limited Environments; 1. Introduction; 2. Water-Limited Potential Yield; 2.1. Risk management: A case study.
- 3. Water as a Limiting Resource: An Analytical and Diagnostic Framework4. Water Balance and Transpiration; 4.1. Available soil water at sowing; 4.2. Evaporation from the soil and other nonproductive losses of water during the growing season; 4.3. Residual soil water at maturity; 5. Transpiration Efficiency; 6. HI: Converting Biomass into Grain; 6.1. Adapting phasic development to environment; 6.2. Managing vegetative growth; 6.3. Effects of water deficits, high temperatures and frost on floral fertility; 6.4. Carbon balance during grain filling; 7. Yield Improvement by Management.
- 7.1. Strategic crop management7.2. Tactical crop management; 7.3. Spatial variability and zone management; 7.4. Diagnostic guide; 7.5. Effects on economy and environment; 8. Concluding Comments; Acknowledgments; References; Chapter 3: Advances in Understanding the Molecular Structure of Soil Organic Matter: Implications for Interactions in the Environment; 1. Introduction; 1.1. Molecular structure and carbon turnover in soils; 1.2. Conceptual approach and objectives; 2. Soil Is an Aqueous System; 2.1. Water as an agent of structural organization.
- 2.2. The effect of decomposition on aqueous solubility3. Evolution of SOM Concepts; 3.1. Historical approaches to define humus/SOM; 3.2. Alkaline extraction: The procedure that shaped our view of SOM; 3.3. Humic substances: True constituents of humus/SOM, artificial preparations or artifacts?; 4. The ``Humic Dilemma ́ ́ as an Element of Contemporary SOM Concepts; 4.1. Polymeric nature and complexity of ''humic substances''; 4.2. Aromaticity of SOM; 4.3. Relating the molecular structure of organic matter to carbon turnover dynamics; 4.4. Model humic substances as proxies for SOM.
