State-of-the-art agricultural system models integrated field-experimental studies opens up a vast arena for enhancing site-specific soil-water-nutrient management across soils and climates, and evaluating cropping system sustainability over the long-term beyond the experiments. However, application of system models to assist in field experiment research also calls for a systems approach in field research and data collection for collecting data representing all the essential physical, chemical, and biological processes in the system. Collection of weather data that adequately represent the cropping system under investigation is also an essential prerequisite for such good model applications but seldom seen in model application studies. The objective of this seminar is to bring together people interested in such good data collection and integrating with system models for novel applications for management, and present their experience, with special reference to 'Extreme Temperature and Drought Effects on ET and Crop Water Stress.'