CP-BKF3 is based on mechanistic relations between crop performance and environmental conditions such as climate and soil. The water module is based on tipping-bucket principles extended with water redistribution by capillary rise. Soil horizons to a depth of 50 cm are partitioned in layers of 5 cm, deeper ones in layers of 25 cm. N uptake, N mineralization and immobilization, N leaching, run off, and drainage. The model has a user-friendly interface which allows parameter change in rerun files and scenario studies over a continued or discontinued period of 15 years.
Rotation of crops is an option in rerun files.
N uptake, N leaching, evaporation, transpiration, root extension, mineralization and more. N content, N uptake, leaf area index, transpiration, rooting depth, specific root length and surface, dry matter for maintenance and more. Warnings and error messages appear on the screen. During simulation the same or other requested variables are sent to tables in output files. Output can be generated every 1-365 days.