The aim of our study was to evaluate the effect of different foliar fertilizers on the yield and grain protein, oil and starch content of maize. The experiment was set up in 2021 at the Öthalom research station of the Hungarian University of Agriculture and Life Sciences in Szeged. The soil was deeply salt meadow chernozem. Its nitrogen content was medium, phosphorus and potassium content was good. The experiment was carried out in three replications, using random blocks design. The size of plots were 14 m2. The produced maize hybrid was DKC 4555 (FAO 350). We sprayed three foliar fertilizers individually and combined with each other. We processed the obtained data by single factor variant analysis. 2021 was unfavourable year for maize. The amount of precipitation was lower by 113.58 mm than the average in the vegetative period of maize, therefore we got relatively low yields. The yield amount of control plot was 2.44 t ha-1. As a result of lack of precipitation the foliar fertilizers resulted low yield increasing (0.04-0.7 t/ha) which was not significant. The highest yield (3.14 t ha-1) we got in Amalgerol+Fitohorm Zn treatment. The foliar fertilizers resulted minimal and not significant changes in maize grain protein, starch and oil contents. We can conclude, that in unfavourable relatively dry year caused low effectiveness of foliar fertilizers in maize production.

maize, foliar fertilizer, yield, grain protein content

agronomy

Presentation: poster