Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 23 ISSUE 4
Written by Raisa VOZHEHOVA, Tetiana MARCHENKO, Yurii LAVRYNENKO, Olena PILIARSKA, Viktor SHARII, Andrii TYSHCHENKO, Vira BOROVYK, Serhii MISHCHENKO, Lyubov KOBYZEVA, Tetiana KHOMENKO

The results of research on the impact of sowing dates on economic efficiency, yield, and harvest moisture of corn hybrids of different FAO groups in the conditions of the Southern Steppe of Ukraine are presented. The genotypic response of corn hybrids of different FAO groups to sowing dates was established. From an economic and agrotechnical point of view, each group of FAO corn hybrids in the irrigation conditions of southern Ukraine has its optimal sowing period. Cultivation of corn hybrids of the FAO group 400–500 in the early (April 15) and late (May 15) sowing periods is associated with a certain risk for production with the possibility of a loss of net income in the range of 21–46% (350–790 EUR/ha). These hybrids are the most productive (13.61–15.13 t/ha of grain) under optimal sowing dates (25.04–05.05) and the most profitable (1,473–1,714 EUR/ha) under irrigation conditions. Corn hybrids with FAO 190–290 have the prospect of being used in organic production without the use of herbicides during the late sowing period (May 15). Corn hybrids FAO 300–390 can be used with high efficiency at optimal sowing times, however, their sowing in early and late periods can be risky due to low cold resistance and high harvest humidity in some wet years.

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