Effect of liming and fertilization on yield and quality of oat (Avena sativa L.) on an acid Luvisol soil.

Abstract

The uplands and highlands in Western Serbia are the most important oat production regions in Serbia. $QH(SHULPHQWZDVFRQGXFWHGRQD�/XYLVROVRLOLQWKH�0W��5DGR˛HORUHJLRQ��VRXWKZHVWHUQ�6HUELD��LQRUGHUWR� evaluate the effect of soil ameliorative operations (liming and humification) and fertilization on grain yield, test weight, 1000-grain weight and grain protein content in oat. The combined use of NPK fertilizers (120 kg N ha -1 , 80 kg P2O5 ha -1 , 80 kg K2O ha -1 ), lime (5 t ha -1 ) and manure (30 t ha -1 ) provided an optimum supply of major nutrients, resulting in maximum grain yield (5.443 t ha -1 ). The combined use of NPK, lime and manure induced a significant increase in test weight and protein content, and a moderate increase in 1000-grain weight. NPK fertilization increased grain yield and test weight, but showed no effect on 1000-grain weight and grain protein content. Nitrogen application resulted in a significant but lower increase in grain yield and quality, which was not likely to provide a significant economic benefit. The combined use of chemical ameliorative operations (liming and humification) and fertilization, especially with adequate rates of nitrogen and phosphorus, facilitate the optimization of the yield and quality of grain having a high market value.