The demands of modern consumers are higher than before, and consequently, the demand of the market for quality food is increasing. Therefore, producers must know how to produce quality food in order to be competitive. Proper production technology and measures such as fertilization can influence the quantity and quality of carrots. Experiments were made which proved that not only fertilization, but also climatic conditions, such as temperature, precipitation, solar radiation and physical as well as chemical properties of the soil affect the quantity and quality of carrots. Soil and foliar fertilization with nitrogen increased yield and sugar content in carrots. Higher amounts of nitrogenous fertilizers increased the content of carotenoids and phenolic compounds in carrot, but decreased the content of vitamin C. Different fertilization regimes with potassium had no significant effect on carrot quantity. Additionally, an experiment monitored the influence of boron (B) and calcium (Ca) on the content of carotenoids, vitamin C and phenolic acids in carrots. The results indicated that all these parameters were increased in treatments, in which even small amounts of B were added
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