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|a Advances in agronomy.
|n Volume 168 /
|c edited by Donald L. Sparks.
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|a Amsterdam, Netherlands :
|b Academic Press,
|c 2021.
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|a 1 online resource (1 volume)
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|a text
|b txt
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|a online resource
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|a Print version record.
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|a Intro -- Advances in Agronomy -- Copyright -- Contents -- Contributors -- Preface -- Chapter One: Current sensor technologies for in situ and on-line measurement of soil nitrogen for variable rate fertiliza ... -- 1. Introduction -- 2. Sensing nitrogen in soil -- 2.1. Traditional methods -- 2.2. Proximal soil sensing methods -- 2.2.1. Reflectance sensing tools for soil nitrogen assessment -- 2.2.2. Electrochemical sensors -- 3. Analysis and modeling -- 3.1. Spectral data analysis -- 3.2. Data fusion -- 3.3. Management zones -- 4. Integration and future prospects -- 5. Conclusions -- Acknowledgment -- References -- Chapter Two: Application of molecular biotechnology to manage biotic stress affecting crop enhancement and sustainable ag ... -- 1. Introduction -- 2. Characterization of biological control agents -- 2.1. Previous approaches used in the characterization of biological control agents -- 2.2. Recent approaches used in the characterization of biological control agents -- 3. Forward and reverse genetic approaches used in the management of pests and diseases -- 3.1. RNA-interference technique -- 3.2. Application of RNAi-based techniques in agricultural pests -- 3.3. Application of RNAi-based techniques in viruses -- 3.4. Application of RNAi-based techniques in fungi -- 3.5. Application of RNAi-based techniques in bacteria -- 4. Insertional mutagenesis using transposons -- 5. Genetic engineering of the CRISPR/Cas 9 system for biological control -- 6. Targeting induced local lesions in the genome (TILLING) -- 7. Next-generation sequencing -- 8. Genome sequencing of biological control agents -- 9. Protoplast fusion -- 10. Identification of mechanisms involved in tripartite Interactions of gene-regulating biological control activities -- 10.1. Genes regulating I-aminocyclopropane-I-carboxylic acid -- 10.2. Genes regulating siderophores.
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|a 10.3. Genes involved in colonization and competition -- 10.4. Genes involved in antibiotics and lytic enzymes -- 10.5. Systemic induced resistance for pest and disease resistance -- 10.6. Genes regulating biological control activities in plant transformations -- 11. Synergetic effects among biological control agents and their consortia -- 12. Significance of soil in the management of pests and diseases -- 13. Conclusion and future direction -- Acknowledgments -- References -- Chapter Three: A review of time domain reflectometry (TDR) applications in porous media -- 1. Introduction -- 2. TDR basics -- 2.1. Principles of TDR -- 2.2. TDR probe designs -- 2.3. Commercially available TDR cable testers -- 2.4. Analysis of TDR waveforms -- 2.4.1. Graphical interpretation methods for water content -- 2.4.2. Graphical interpretation methods for EC -- 2.4.3. Time- to frequency-domain transformation -- 2.4.4. Software programs for TDR waveform analysis -- 3. Applications of TDR -- 3.1. Physical properties of porous media -- 3.1.1. Soil water content measurement with traditional TDR methods -- 3.1.2. TDR for soil moisture profile distributions -- 3.1.3. Liquid water content and density of snow -- 3.1.4. Tree trunk water content -- 3.1.5. TDR applications in food science, engineering and geophysics -- 3.2. Waveform analysis to determine porous media processes -- 3.2.1. Electrical conductivity (EC) and solute transport -- 3.2.2. Locating wetting/drying fronts -- 3.2.3. Measurement of local-scale soil water flux with vertical TDR probes -- 3.2.3.1. One-dimensional, transient vertical soil water flux -- 3.2.3.2. Steady-state vertical soil water flux and solute transport -- 3.2.4. Locating a freezing/thawing front and detecting frost -- 3.2.5. Hoarfrost and dew detection -- 3.2.6. Determination of snow depth -- 3.2.7. Determination of water depth or water level.
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|a 3.2.8. Detection of rock or soil mass deformation, ground water level and piezometric pressure -- 3.3. TDR combined with other methods to determine a variety of properties -- 3.3.1. Thermo-TDR for vadose zone measurements -- 3.3.2. TDR-matric potential probe to determine soil water retention curves (SWRC) -- 3.3.3. More combinations of TDR with other techniques -- 4. Limitations and perspectives -- 4.1. Uncertainties in graphical interpretations -- 4.2. Uncertainty in TDR measurements of water content and water storage -- 4.3. Protocols for TDR and a new TDR probe design -- 4.4. Development of duty-cycle TDR unit -- 5. Summary -- Acknowledgments -- References -- Chapter Four: Soil health in agricultural ecosystems: Current status and future perspectives -- 1. Introduction -- 1.1. Objectives of the review -- 1.2. History and concept of soil health -- 1.3. Definition and current status of soil health -- 2. Soil health indicators -- 2.1. Domains of soil health indicators -- 2.2. Recommendations for soil health indicators -- 2.3. Interpreting soil health indicator values and determining soil health score -- 2.4. Emerging soil health indicators -- 3. Soil health and management practices -- 3.1. Practices to increase soil organic carbon stocks -- 3.2. Field practices to improve soil health -- 3.3. Soil health indicators sensitivity to agronomic management systems -- 3.4. Nutrient management discussion as a core component of the soil health dialogue -- 3.5. Linking soil health to soil functioning and ecosystem services -- 4. Social and economic perspectives on soil health -- 4.1. Stakeholder perceptions and relevance -- 4.2. Communicating soil heath to end-users -- 4.3. Economics of maintaining and measuring soil health -- 5. Knowledge gaps, future directions, and conclusions -- References.
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|a Chapter Five: Genetic improvement of crop yield, grain protein and nitrogen use efficiency of wheat, rice and maize in China -- 1. Introduction -- 2. Materials and methods -- 2.1. Data collection -- 2.2. Data analysis -- 3. Results -- 3.1. Genetic improvement and agronomy contributed similarly to farm-yield improvement over 6-7 decades -- 3.2. The rates of genetic yield gain were associated with environmental conditions -- 3.3. Shifts in yield components with selection for yield was crop-dependent -- 3.4. Trends in grain protein, nitrogen uptake and nitrogen harvest index were crop-dependent -- 3.5. Selection for yield increased nitrogen use efficiency in wheat, rice and maize -- 4. Discussion -- 5. Conclusion -- Acknowledgments -- Appendix A. The references of 116 publications were collected for wheat, rice and maize in China (1994-2019): -- Appendix B. Basic information of experimental sites for wheat. -- Appendix C. Basic information of experimental sites for rice. -- Appendix D. Basic information of experimental sites for maize. -- Appendix E. The references used in Fig. 4. -- References -- Index.
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| 650 |
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0 |
|a Agronomy.
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| 650 |
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6 |
|a Agronomie.
|0 (CaQQLa)201-0011037
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| 650 |
|
7 |
|a agronomy.
|2 aat
|0 (CStmoGRI)aat300254393
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| 650 |
|
7 |
|a Agronomy
|2 fast
|0 (OCoLC)fst00801886
|
| 700 |
1 |
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|a Sparks, Donald L.,
|d 1953-
|e editor.
|
| 776 |
0 |
8 |
|i Print version:
|t Advances in agronomy. Volume 168.
|d Amsterdam : Academic Press, 2021
|z 9780128245897
|w (OCoLC)1247942828
|
| 856 |
4 |
0 |
|u https://sciencedirect.uam.elogim.com/science/bookseries/00652113/168
|z Texto completo
|
