The influence of selected growing factors on the spring barley yield

The influence of various. agrotechnics, fertilization, soil type and year a nd interactions of these factors on the spring barley yield were evaluated in field trials conducted during 1994 to 1997. In regard to statistical eva luation by a total analysis of variance the fertilization was dominant sour ce of variability of the spring barley yield. The influence of soil type an d year has just had a lower significance. The different agrotechnics has no t been a significant on yield variability. Statistically significantly was determined for the interaction between agrotechnics, soil type and year and also between soil type and year only. The other interactions were not sign ificant. The similar results are not valid for all fertilization interactio ns.