ASABE Technical Library - Abstract
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CASUPRO: An industry-driven sugarcane model
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org
Citation: Paper number 053025, 2005 ASAE Annual Meeting . (doi: 10.13031/2013.19062) @2005Authors: Fernando D. Villegas, Oscar H. Daza, James W. Jones, Frederick S. Royce
Keywords: Sugarcane, modeling, simulation, phenology, growth
In the Colombian sugar industry, sugarcane (S. Officinarum) is planted, harvested and
processed continuously throughout the year. However, there are seasonal and spatial variations in
cane and sucrose productivity that affect the profitability of sugar production. Industry research
leaders believe that the availability of a practical simulation model for cane and sucrose production will help managers understand the causes of this variability and contribute to the design of strategies
for more effective resource allocation.
The Colombian Sugar Cane Research Center (CENICAA) and the Crop Systems Modeling group
at the University of Floridas Agricultural and Biological Engineering Department are developing the
CASUPRO (CAne/SUcrose PROduction) model, based on the DSSAT-CROPGRO modular structure
(Phenology, Photosynthesis, Growth, and Soil-Water balance). Like other DSSAT models,
CASUPRO aspires to universal applicability; i.e., the ability to simulate growth and development
under the local conditions of sugarcane producers around the world. Data are currently being
collected in Colombia, Florida and Puerto Rico for calibrating and validating the model. We present
the mathematical relationships that describe phenological development, leaf area development, and
dry matter growth and partitioning. Preliminary simulation results are shown for leaf area and
phenological development.