1. General Model Information

Name: SUCROS*-model applied on spring barley (competition and plant density effects included)


Main medium: terrestrial
Main subject: biogeochemistry
Organization level: ecosystem
Type of model: compartment model
Main application:
Keywords: crop growth, spring barley, crop distribution, biomass, leaf area indices, light interception, radius plants, plant heights, phenological development, photosynthesis, respiration, light interception


Mr. J.W. Schut
Address: Wageningen Agricultural University
Dept. Plant breeding
Lawickse allee 166
6709 DB Wageningen
Phone: +31.8370.82836
Fax : +31.8370.82419
email: johan.schut@users.pv.wau.nl



The model simulates 2 spring barley varieties with densities NPL, competing for light in a potential production environment. The model is based on the SUCROS* spring wheat model. It has been extended for light interception and distribution within the heterogeneous crop. The model may be applied in plant breeding and crop science.

Author of the abstract:

CAMASE (Concerted Action for the development and testing of quantitative methods for research on Agricultural Systems and the Environment):

II. Technical Information

II.1 Executables:

Operating System(s): VAX computer, (IBM compatible ?)

II.2 Source-code:

Programming Language(s): CSMP with FORTRAN-routines Other software required: and daily weather data.

II.3 Manuals:

II.4 Data:

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

Geographical latitude and longitude, weather data, variety specific physiological and

III.2.1 Input

Geographical latitude and longitude, weather data, variety specific physiological andmorphological characteristics. Crop rate and state variables (per variety).

III.2.2 Output

Crop rate and state variables (per variety). Number of output data: About 25.

Time interval of simulation: 1 day.

Basic spatial unit: Ha.

IV. References

Schut, J.W., 1992. The effect of several physio-morphological traits on yield of two contrastingspring barley varieties at different plant densities in monoculture and mixture. Simulation and fieldtrial. Scriptie Agricultural University, Department of Theoretical Production Ecology, TheNetherlands. 118 pp.

V. Further information in the World-Wide-Web

VI. Additional remarks

Last review of this document by: T. Gabele: 08. 07. 1997 -
Status of the document:
last modified by Joachim Benz Mon Jul 2 18:31:37 CEST 2007

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