Technological development of sustainable maize production and its effect on yield stability

Sárvári, Mihály
Folyóirat címe
Folyóirat ISSN
Kötet címe (évfolyam száma)
Faculty of Agricultural and Food Sciences and Enviromental Management of the Debrecen University, Debrecen.
In 2015 and 2016, we examined the effect of NPK nutrients, sowing date and plant density on yield on typical meadow soil. The amount of precipitation was 282.0 mm in 2015 (January–September), 706.0 mm in 2016 and the 30-year averageis 445.8 mm. Agrotechnical factors: – Experiment a)            5 Dow AgroSciences hybrid with three sowing dates and three plant densities – Experiment b) In 2015 eight, in 2016 ten hybrids with different genetic characteristics and growing seasons, with control (without fertilization), N80+PK and N160+PKtreatments, five plant densities (50–90 thousand) with 10 thousand plants difference between the different densities. In a drought year, we reached the higher yield in the earlier sowing date and with the lower lower plant density of 70 thousand plants ha-1-. The maximum yield, depending on the agrotechnical factors, was 10–12 t ha-1 in 2015, while in 2016 it was 14–16 t ha-1. Yield stability can be increased using hybrid-specific cultivation techniques.
sowing date, fertilizer dosage, plant number, hybrid