The main goal of these study was to examining the effect of plant density of maize hybrids on yield and income. The experiment was set up in Óbecse (Serbia) used by in a split-plot design with four replications and four plant densities (65,000, 70,000, 75,000, 80,000 plants ha-1) in 2021. The soil was calcareous chernozem. Its nitrogen and phosphorus content was very good, and potassium content was good. The studied hybrids were: KWS Kashmir (FAO 400), KWS Kollegas (FAO 480), KWS Don Juan (FAO 440) and Pioneer 0164 (FAO 430). 2021 was moderately dry year. The amount of rainfall was lower by 98.6 mm than the long term average in the vegetation period of maize. The results were processed and statistically evaluated using the software Microsoft Excel 2016 and IBM SPSS Statistics Version 29.0.0.0. The Pioneer0164, KWS Don Juan, and KWS Kashmir hybrids reached their maximum yield and the highest income at a plant density of 65,000 plants/ha. On the other hand the KWS Kollegas hybrid resulted the highest yield (7866 kg/ha) at a plant density of 80,000 plants/ha, and consequently, the highest income as well. The results indicate, that maize hybrids have varying optimal and econimically viable plant densities, therefore, it is advisable to use hybrid-specific cultivation techniques.

maize, plant density, yield amount, income

agronomy

Presentation: poster