Abstract: 【OBJECTIVE】In order to explore the approach of integrated and intelligent crop modeling, the modeling tools were developed.【METHOD】By analyzing and extracting the crop (wheat, rice and cotton) growth models and simulation systems, the generic modeling flow, generic model framework, generic model interface and generic model template, and growth meta-model for agronomic crops were established. Based on crop model resource library, model components, model description script and model engine, the architecture and core parts of Integrated Crop Modeling Simulation System (ICMS) with layer and component characteristics were designed.【RESULTS】The prototype system was developed with C# based on .Net platform and SQL Server database. Further, a wheat growth model was reconstructed using the ICMS. The results shows that the model reconstructed by the ICMS could well simulate wheat growth processes and exhibit small errors as compared with wheat growth system based on code modeling approach. 【CONCLUSION】The ICMS realizes flowchart process of crop modeling,, industrialization of modeling method, generalization of interface and transparent of models. With ICMS, a crop model can be developed by scientists/modelers with no-code automatic approach through studying, customizing, designing, configuration, assembling, evaluation and extension.

Key words: Crop growth simulation, Meta-model, Generic process, Integrated modeling, Intelligent modeling, Model framework, Template