Growing forage grasses on the degraded lands in the Southern Steppe zone of Ukraine

Galyna Iutynska1 , Raisa Vozhegova2, Stanislav goloborodko2, Liudmyla Tytova1, Olena Dubynska2 , Liudmyla Bilіavska1 , Dragutin Đukić3 and Monika Stojanova4
1 “D. K. Zabolotny” Institute of Microbiology and Virology of the NAS of Ukraine, Department of General and Soil Microbiology, 03143, Kyiv, Kyiv region, Ukraine
2 Institute of Climate-Oriented Agriculture of the NAAS of Ukraine, Department of Climate-Oriented Agrotechnologies, 01010, Kyiv, Kyiv region, Ukraine
3 University of Kragujevac, Faculty of Agronomy, Cacak, Serbia
4 “Ss. Cyril and Methodius” University, Faculty of Agricultural Sciences and Food, Skopje, North Macedonia

Abstract

Iutynska, G., Vozhegova, R., Goloborodko, S., Tytova, L., Dubynska, O., Bilіavska, L., Đukić, D. & Stojanova, M. (2026). Growing forage grasses on the degraded lands in the Southern Steppe zone of Ukraine. Bulg. J. Agric. Sci., 32(2), 317–324

Intensive agricultural practices, prevalence of annual crops in crop rotations under simultaneous shrinking of sowing areas under perennial leguminous grasses and negative climate change have led to active soil degradation and desertification in the South of Ukraine. Fertility losses in degraded lands calls for immediate development of measures for the restoration of their productivity. The aim of the study was to develop technologies for growing highly productive perennial fodder grasses in conditions of insufficient natural moisture on degraded lands in the south of the Steppe zone of Ukraine. Field experiments were conducted under sowing cereal and leguminous perennial grasses with different duration of the plots conservation. In 1- to 5-year grass cultivation, sown with perennial leguminous grasses (alfalfa or sainfoin), the gross yield of absolutely dry matter reached 5.36–5.63 t/ha, the digestible protein yield was 0.84–0.97 t/ha. Under the long-term use (for 6–8 years), productivity of the herbages decreased. Seed inoculation of leguminous crops with symbiotic bacteria promotes increasing the productivity of grass stands and enrichment of the soil with nitrogen. Increasing the sowing area of leguminous grasses such as alfalfa and sainfoin, as well as their mixtures, combined with the use of new bio preparations, will help mitigate the catastrophic fertility losses and soil degradation in south of Ukraine, as well as reduce the impact of natural phenomena related to global and regional climate change.

Keywords: perennial grasses; bio preparations; soils fertility restoration

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