1. General Model Information

Name: Simulation of potential growth of tulip


Main medium: terrestrial
Main subject: biogeochemistry
Organization level:
Type of model: ordinary differential equations
Main application:
Keywords: crop growth, tulip


Dr.ir. J. Schans
Research Institute for Agrobiology and Soil Fertility (AB-DLO)
Dept. Agrosystems Research
P.O.Box 14
6700 AA Wageningen
Phone: +31.8370.75934
Fax : +31.8370.23110
email: schans@ab.agro.nl



In the framework of the CABO-DLO/TPE-LUW project 'Development of methods for design, validation and optimization of integrated cropping systems' three explanatory models were compared to identify the most suitable one for simulation of potential growth of tulip. The model WOFOST appeared most suitable for simulation of tulip growth and was selected for further use in the project and adapted for simulation of tulip. The model was calibrated with datasets of seven field trials. After calibration the model was validated with some independent datasets. Yield level was well simulated but variation in yield between years was not fully explained by the model. Also the model was not sensitive enough in total seed bulb weight. The model may be improved by incorporating the contribution of seed bulb carbohydrates to initial leaf growth. Adaptations to WOFOST: - the light interception by way of growing on beds. - the remobilization of carbon hydrates from the planting material - the flower as separate organ.

Author of the abstract:

CAMASE (Concerted Action for the development and testing of quantitative methods for research on Agricultural Systems and the Environment)
(The CAMASE project has stopped activities)

II. Technical Information

II.1 Executables:

Operating System(s): VAX

II.2 Source-code:

Programming Language(s): FORTRAN

II.3 Manuals:

II.4 Data:

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

III.2.1 Input

III.2.2 Output

IV. References

Ruijter, F.J. de, W.A.H. Rossing & J. Schans, 1993. Simulatie van opbrengstvorming bij tulp metWOFOST. Simulation Reports CABO-TT, no. 33. Augustus 1993, Wageningen. 29 pp.

V. Further information in the World-Wide-Web

VI. Additional remarks

Last review of this document by: T. Gabele: Dec 23 1997
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:52 CEST 2002

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