Забур’яненість посівів і продуктивність гібридів соняшнику  у процесі вирощування за класичною та Clearfiled-технологією

K. K. Kurtiev; Ye. O. Domaratskyi

doi:10.21498/2518-1017.21.4.2025.346229

Authors

K. K. Kurtiev Odessa State Agrarian University, Ukraine https://orcid.org/0009-0000-7709-4541
Ye. O. Domaratskyi Plant Breeding and Genetics Institute – National Center of Seed and Cultivar Investigation, Ukraine https://orcid.org/0000-0003-3912-1611

DOI:

https://doi.org/10.21498/2518-1017.21.4.2025.346229

Keywords:

sunflower hybrids, conventional technology, Clearfield technology, soil discing, strip-till soil cultivation, weed infestation, yield

Abstract

Purpose. To evaluate the effectiveness of conventional and Clearfield technologies for controlling weeds in crops, and to assess sunflower productivity under different growing conditions. Methods. A two-factor field experiment design was used to conduct the study during 2023–2025 in the central steppe zone on the fields of Kolos LLC in the Rozdilnianskyi district of the Odesa region. ‘NK Kondi’ (Syngenta) and ‘P64LP130’ (Pioneer) sunflower hybrids were cultivated using classic and Clearfield technologies, respectively. Both varieties belong to the medium-maturing linoleic group. Soil cultivation was performed using a Qualidisc disc harrow (control) and a Mzuri Pro-Till 6T/Horsch Tiger 6MT/Salford 700 complex. Generally accepted methods of crop production were used during the cultivation and care of the plants. Results. It was established that Clearfield technology offers more effective weed control, but the difference was not significant. In favourable years, conventional technology yielded 6.9–10.1% more, while Clearfield had a 17.6% advantage in the dry year of 2025. Conclusions. The results of the studies indicate the possibility and feasibility of using both technologies. The choice between them depends on the degree of weed infestation and moisture conditions.

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