John R. Porter (University of Copenhagen)
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AFRCWHEAT2: A model of the growth and development of wheat incorporating responses to water and nitrogenJohn R.PorterEuropean Journal of Agronomy, 1993 View paper
AFRC-Wheat is a FORTRAN-based mechanistic model that incorporates crop response to water and nitrogen constraints. Model processes include phenological development, partitioning of photosynthesis, growth of leaf and stems, senescence, biomass accumulation, and root system dynamics. The model uses a threshold of accumulated growing degree days above a base and below a ceiling temperature to regulate growth.
Some case studies
Used to investigate the interannual variation in the length of vegetative and floral development and grain filling periods driven by historic climate data. Results of experiments with the AFRC-Wheat model run with climate change can be extrapolated to national-scale crop potential estimations using GIS technology.