Dynamic simulation: A positive feedback mechanism for experimental research in the biological sciences

The focus of this paper is on the application of system theory and computer technology to the area of experimental research in field crops through the medium of process-oriented dynamic simulation models. Conjointly, specific experimental hardware has been devised to facilitate not only the development of a data base for building these types of model but also to produce data which can be used to validate these models in a real-time mode. This system is called a SPAR system: soil-plant-atmosphere research system. The SPAR system, the computer systems, and the modelling effort result in a synergistic process in which experimental research into field crops is amplified above and beyond the normal scientific method by the nature of the iterative, positive feedback mechanisms that are present in this new methodology.