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10744: Simulating Root Density Dynamics and Nitrogen Uptake – Can a Simple Approach be Sufficient?

Pedersen, Anders; Zhang, Kefeng; Jensen, Lars Stoumann and Thorup-Kristensen, Kristian (2007) Simulating Root Density Dynamics and Nitrogen Uptake – Can a Simple Approach be Sufficient?. Paper presented at 37th Annual Biological Systems Simulation Conference, Holiday Inn, College Park, Maryland, US, April 17-19, 2007; Published in 37th Annual Biological Systems Simulation Conference, Program and Abstract, page pp. 11-12. USDA-ARS.**

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Summary

The modeling of root growth in many plant–soil models is simple and with few possibilities to adapt simulated root proliferation and depth distribution to that actually found with different crop species. Here we propose a root model, developed to describe root growth, root density and nitrogen uptake. The model focuses on annual crops, and attempts to model root growth of different crop species and row crops and its significance for nitrogen uptake from different parts of the soil volume.

Document Language:English
Keywords:root, modelling, rooting depth, root density
Subject Areas: Soil > Nutrient turnover
Crop husbandry > Crop combinations and interactions
Crop husbandry > Production systems > Root crops
Farming Systems > Farm nutrient management
Crop husbandry > Production systems > Vegetables
Research affiliation: Denmark > KVL - The Royal Veterinary and Agricultural University
Denmark > KU - University of Copenhagen
Denmark > DIAS - Danish Institute of Agricultural Sciences
Denmark > DARCOF II (2000-2005) > I.10 (VegCatch) Organic vegetable cultivation methods and use of catch crops
Denmark > SOAR - Research School for Organic Agriculture and Food Systems
Funding Part:5-25%
Total budget (Euro):0
Orgprints ID Number:10744
Contact:Pedersen, Ph.Stud. Anders
Deposited On:25 April 2007
EPrint Type:Conference paper
Published?:Published
Peer Review Status:Not peer-reviewed

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