When planning for a new harvest year you need to determine which crops to grow on which fields. You can accomplish this by creating new production units.
To create a new production unit right click the production unit node and choose new production unit. A wizard will appear. In the first screen of the wizard the user is asked to enter the details for the production unit. The user is able to enter the name, description, start date, end date and the crop for a production unit. The fields name, start date, end date and crop are mandatory. When you are satisfied with your input choose next. The last screen in the wizard provides a summary of your input. Verify the input, and click finish to create the production unit.
To add crop fields to production units you need to drag fields to the desired production unit. Choose the desired field(s) click them and while holding on to the left mouse button drag them to the desired production unit. When the mouse button is released crop field(s) are created based on the geometry of the field which was dragged.