The purpose of the experimental development of winter barley fertilsation consultancy was to examine the impact of different P supply levels on the macro- and microelement concentration of winter barley at tillering as well as its yield on chernozem meadow soil at well separated soil nutrient supply levels in a long-term fertilisation experiment. The long-term fertilisation experiment was established in 1989 on deeply calcareous chernozem meadow soil using 4–4 N, P and K supply levels and whole treatment combination 64 treatments and three replications. This study presents the P fertilisation results of experiments performed in 2011 and 2012.

1. The AL-P2O5 supply range of the soil was 118–251 mg kg-1, the increasing dose of P supply significantly increased the P concentration of winter barley at tillering in 2011, while in 2012, significant increase in concentration was observed in the following nutrients: N, P, K, Ca, Mg, Cu and B.

2. In addition to the 133–251 mg kg-1 P-supply level of the soil, the crop year also significantly affected the nutrition concentration of winter barley at tillering.

3. The satisfactory nutrition status related to the maximum yield (3.87 and 4.83 t ha-1) can be characterised with the following nutrient concentrations in the development level of winter barley at tillering: N 3.49–3.71%, P 0.37–0.38%, K 2.85–4.14%, Ca 0.44–0.57%, Mg 0.17–0.23%, Na 0.17–0.29%, Mn 50.4–64.75 mg kg-1, Zn 20.7–26.15 mg kg-1, Cu 4.9–7.78 mg kg-1, B 4.3–4.5 mg kg-1 and in case of Mo 0.17–0.20 mg kg-1.

4. The highest yield was observed when AL-P2O5 was applied at 194 and 224 mg kg-1.

Keywords: P supply, long-term experiment, winter barley, macro- and microelement