Effects of Moisture Stress on Nitrogen Fertilizer Response in Dryland Wheat

(...) The response to N in both years was significant; the mean yields were 3.18 and 1.7 Mg ha −1 , for the 1983 and 1984 seasons, respectively. The data were statistically analyzed by means of a postulated multiple regression model, with N and S levels as the explanatory variables. The model was validated using yield and meteorological data from several other 2-yr N response studies (...)