1. General Model Information
Name: Nitrogen Crop Response Model
Main medium: terrestrial
Main subject: agriculture, biogeochemistry
Organization level: ecosystem
Type of model: 2D,
Keywords: nitrogen, fertilizer, N-response, N-fertilizer, crop response, N-cycle, crop residue incorporation, nitrate, leaching, soil, soil layers, yield, growth, rainfall, irrigation, temperature, humidity, climate, 2 D root development, online, www, interactive, N_ABLE
Ian E Currah
14, Eton Road,
CV37 7EJ, UK
Greenwood, Rahn, Draycot
On-line dynamic simulation of response of 25 crops to applications of
nitrogen fertilizers in 133 different climatic zones world-wide.
Effects of organic material such as crop debris are taken into account.
Results include effects on plant growth, soil conditions and leaching.
Supporting documentation, diagrams and references are also on-line.
This is a World Wide Web installation.
Flow diagram of the model
NCRM is the simplified Internet version of the
Model, a stand-alone program developed at Horticulture Research International (HRI),
UK by Clive Rahn and Ann Draycott (based on
research models of Duncan Greenwood and Ann Draycott)
II. Technical Information
Operating System(s): CGI Web server, Apply to authors.
Stand-alone version information
Apply to authors, User-friendly on-line instructions
Not applicable On-line input forms and weather data
III. Mathematical Information
Full references are on-line.
See references on-line.
On-line input forms are already filled with default data.
Summary text output, detailed text output and graphical output are all on-line.
Full list of references is on-line.
V. Further information in the World-Wide-Web
VI. Additional remarks
Full details are at the Web site
Last review of this document by: Ian E Currah Sat Apr 25 1998
Status of the document: Contributed by Ian E Currah
last modified by
Joachim Benz Tue Feb 25 18:27:00 CET 2003