Influence of Systematic Mineral Fertilization on the Yield and Quality of Malting Barley Variety 'Ahat'

The study was carried out during the period of 2019-2021 in experimental field IASS "Obraztsov chiflik" - Ruse a long-term stationary fertilizer trial with 4-pole crop rotation, including interchange corn, barley, beans and wheat, according to scheme Georges Ville three replications located Rümker. Fertilization options are individual combined application macroelements – nitrogen, phosphorus, potassium non-fertilized control is used for comparison. yields wintering malting barley variety "Ahat" grown conditions permanent experiment affected by weather conditions, research 2020 appears be most favorable development crop, due sufficient amount evenly distributed precipitation its combination optimal average monthly temperatures growing season. In all years testing, variants nitrogen showed proven higher compared control. accumulation phosphorus their applications has depressing effect on plants, hence negative impact yield. quantitative qualitative indicators grain changed under influence fertilization, analogously yields. parameters mass per 1000 grains, germination crude protein content were fertilization decreased or close other variants. Differences hectoliter weight uniformity not statistically proven.