EFFECT OF YEAR AND FERTILIZATION ON WINTER BARLEY QUALITY

Abstract

The experiment was established at the experimental field of the Small Grains Research Centre in Kragujevac (Serbia) during the two growing seasons. The objective of the research was to evaluate the effect of fertilization and the environment on the yield of winter barley. The following characteristics were analysed: grain yield, 1000 grain weight and test weight. The average grain yield and 1000 grain weight of all treatments in 2010/11 growing season was significantly greater than in 2009/10, mostly as the result of highly favourable weather conditions at major stages of plant development. The grain yield of the barley was significant lower in control (treatment without fertilizer). Barley yield was the highest in the NP1K and NP2K (4.199 and 4.290 t/ha) treatments. Variance analysis showed statistically very significant differences for grain yield, 1000 grain weight and test weight between the vegetation seasons and very significant differences for grain yield and 1000 grain weight between the effects of fertilization. Variance analysis showed very significant differences for 1000 grain weight between the interaction of the vegetation seasons and variants of fertilization