Transform Calendar day to Julian Day. Converts day, month, year into the equivalent Julian Day allowing for leap years. This is a submodel of AFRC Wheat 2 model in Simile notation (the XML version will follow shortly).
Porter J (1993). AFRCWHEAT2: A Model of the Growth and Development of Wheat Incorporating Responses to Water and Nitrogen. . Eur. J. Agron. 2(2): 69-82..
Originally submitted to PLaSMo on 2011-02-04 15:30:45
Created: 10th Jan 2019 at 17:39