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Full Description
Discusses New Advancements to Improve Existing Simulations of Plant Nitrogen
Written by research pioneers and leading scientists in the area of agricultural systems, Quantifying and Understanding Plant Nitrogen Uptake for Systems Modeling comprehensively covers plant N uptake in agricultural system models, especially for building soil-plant system models.
The text illustrates how to minimize the transportation of nitrogen fertilizers in crop production to surface and ground waters, as even moderate errors in uptake estimations lead to a dramatic increase in the amount of nitrogen leached into groundwater. It also highlights the knowledge gaps preventing correct simulation of this process and explains what to look for when using a system model and interpreting simulation results.
Applies to a Variety of Crops, Including Oilseed, Wheat, Potatoes, and Maize
Addressing quantification and synthesis in the context of system modeling, this text introduces cutting-edge and original information regarding N uptake not previously offered by other research texts in the field. This, in turn, benefits scientists, professors, system modelers, and model users in interpreting modeling results for enhancing nitrogen management and developing decision support tools.
This volume documents, with complex, detailed models, plant N uptake based on absorption kinetics of transporters across the root cell membranes, mass flow, and diffusion to the root surface of single or composite roots. It also provides simpler models used in N uptake simulations at the field and watershed scales.
Discusses All Areas of the Complex Process
In addition to the important processes of nitrogen translocation, remobilization, and grain protein formation, the book documents various philosophies, mechanisms, and scales in simul
Contents
Current Status and Future Needs in Modeling Plant Nitrogen Uptake: A Preface. Modeling Nitrogen Fixation and Its Relationship to Nitrogen Uptake in the CROPGRO Model. Modeling Nitrate Uptake and Nitrogen Dynamics in Winter Oilseed Rape (Brassuca napus L.). Control of Plant Nitrogen Uptake in Native Ecosystems by Rhizospheric Processes. Dissolved Organic Nitrogen and Mechanisms of Its Uptake by Plants in Agricultural Systems, Water and Nitrogen Uptake and Responses in Models of Wheat, Potatoes, and Maize, Modeling Grain Protein Formation in Relation to Nitrogen Uptake and Remobilization in Rice, Modeling Water and Nitrogen Uptake Using a Single-Root Concept: Exemplified by the Use in the Daisy Model. Modeling Plant Nitrogen Uptake Using Three-Dimensional and One-Dimensional Root Architecture. Simulation of Nitrogen Demand and Uptake in Potato Using a Carbon-Assimilation Approach. Roots Below One-Meter Depth Are Important for Uptake of Nitrate by Annual Crops. Nitrogen-Uptake Effects on Nitrogen Loss in Tile Drainage as Estimated by RZWQM. Simulated Soil Water Content Effect on Plant Nitrogen Uptake and Export for Watershed Management.
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