YIELD COMPONENTS IN RELATION TO GRAIN YIELD LOSSES OF BARLEY FERTILIZED WITH NITROGEN

摘要

Application of nitrogen (N) fertilizer above the optimum rate suppresses grain yield of cereals in environments in which water supply is limited towards the end of the growing season. The aim of this study was to examine the effect of N fertilizer application on yield components of barley. The two-rowed barley locally named Kantara was grown for eight growing seasons in different long-term rotational experiments at two locations under rainfed conditions (200 to 450 mm) in Cyprus. Four rates of ammonium sulphate (0, 30, 60 and 90 kg N ha(-1)) were applied at sowing.