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The impact of drought on winter wheat yield under conventional and reduced tillage systems in the Nagykunság region
Published:
2026-06-30
https://doi.org/10.12666/w6cn7x40
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Copyright (c) 2026 Gergő Asbolt, Loujaine Seddik, Seren Zedan, Krisztina Varga, István Csízi, György Zsigray, Géza Tuba, Györgyi Kovács, József Zsembeli
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Asbolt, G., Seddik, L., Zedan, S., Varga, K., Csízi, I., Zsigray, G., Tuba, G., Kovács, G., & Zsembeli, J. (2026). The impact of drought on winter wheat yield under conventional and
reduced tillage systems in the Nagykunság region. Növénytermelés, 75(1-2), 3-18. https://doi.org/10.12666/w6cn7x40
Abstract
In the present study, the effects of reduced and conventional tillage on the grain yield of winter wheat were investigated during the extremely dry 2021/2022 growing season in Karcag, Hungary. The research was conducted within the framework of the local long-term soil tillage experiment, where the reduced tillage plots have been managed since 1997 using non-inversion, loosening-based primary tillage and mulch farming. The soil of the experimental site is a clayey loam textured, deep-saline meadow chernozem. The experiment was carried out in four replications on meso-plots (1890 m²). For the evaluation of the results, key local meteorological data were considered, including precipitation totals, temperature data, and potential evapotranspiration (PET), from which the climatic water balance (CWB) was calculated. Descriptive statistical parameters were determined, and following a (positive) homogeneity test, a one-way analysis of variance (ANOVA) was performed. Based on the results, reduced tillage achieved an experimental average of 4.45 (±0.10) t ha⁻¹, significantly outperforming (p<0.05) the conventional, moldboard ploughing-based tillage yield of 3.62 (±0.29) t ha⁻¹. The processing and evaluation of meteorological data revealed that the 2021/2022 growing season in Karcag was extremely dry for winter wheat production, particularly during the critical spring vegetative and especially the reproductive stages. This drought intensified the differences in soil water management between reduced and ploughing-based conventional tillage systems. Based on these findings, the previously described soil moisture-conserving effect of reduced tillage was confirmed, and it was concluded that significant yield surpluses can be achieved with reduced tillage in winter wheat production during drought years.
