3.4.1. Ivanovice

The CPC was significantly affected by year (*p* < 0.001), fertilizer treatment (*p* < 0.001), and their interaction (*p* < 0.001). The most dominant factor influencing the CPC was fertilizer treatment (97%). The average CPC ranged from 8.1% (control) to 14.5% (FYM+N3PK) (Table 7). No differences between the control and FYM treatments were recorded. The year to year differences were significant in the FYM and FYM+N3PK treatments, especially in the FYM+N3PK treatment, showing a fluctuation

based on the weather conditions of the season. However, the contribution of this factor was small when compared with the effect of fertilizer treatment (Table 7).


**Table 7.** The average crude protein content (CPC) (%) and the value of Zeleny's sedimentation test (ZST) (mL) of wheat grain as affected by locality, fertilizer treatment, and the year.

Mean values with SE, followed by the same letter (A vertically, a horizontally), are not significantly different (α < 0.05). n.a.—results not available.

The value of ZST developedsimilarly as the CPC. The average values ranged from 17.6 mL (control) to 56.4 mL (FYM+N3PK) (Table 7). The major factor affecting the ZST was fertilizer treatment (97%). No differences between the control and FYM treatments were recorded. The value of ZST fluctuated from year to year in the same treatment, but the generaleffect of this factor was negligible in comparison with the fertilizer treatment.
