Abstract:
Field measurements of nitrogen loss from irrigated croplands have been lacking
under agroclimatic conditions in Pakistan. It is only recently that field studies on
de nitrification and total fertilizer N losses were reported from some irrigated croplands in
the Faisalabad region. This paper reviews the available data on the directly measured
de nitrification loss from maize, wheat and cotton, and the fate of "N-labeled fertilizer
applied to these crops under irrigated field conditions.
