The study deals with the statistical analysis of crop production structure concerning farm size. Given the large-scale nature of Czech agriculture and the deepening structural imbalance, this is a topical issue. Firstly, the trends in the area of sown crops between 1993–2023 and their expected development between 2024–2025 were assessed. Subsequently, the weighted data of conventional farms focused on field crop production operating in the Czech Republic were analysed using the Kruskal–Wallis test. With the exception of peas, the share of crops grown depends on the size of the farm. There are statistically significant differences, mainly between small and very large farms and between small and large farms. At the same time, it is clear that in the long term, there has been a significant decline in the area sown to potatoes, rye, barley, and forage, which are crops that account for a higher proportion of the harvested area structure on small holdings.