Dear colleagues, In the NFLUX subroutine, which determines nitrogen drainage and leaching, I encounter the following line: OUTN =MAX((SKGN(K)-XMIN),0.0)*(FLOW(K-1)/ + (SW(K)*DLAYR(K)+FLOW(K)))*0.5 My questions is, why is the latter part of this equation multplied by 0.5? Could somebody explain this to me? Reinder De Jong Agriculture and Agri-Food Canada Ottawa, ON Canada