ArticleBiologia futura2026
Yield and energy efficiency of phytoenergy crops under biopreparation treatments in the conditions of the Southern Steppe of Ukraine.
Article in Biologia futura, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
In the current context of energy-resource shortages and increasing environmental pressures, the cultivation of phytoenergy crops is becoming particularly relevant, especially in regions with limited moisture, such as the Southern Steppe of Ukraine. The aim of the study was to determine the optimal species and varieties of energy crops, assess the effectiveness of biopreparations for increasing yield, and analyse the energy output of raw materials depending on cultivation technology. The methodology was based on field experiments using different crop species (Sorghum, Jerusalem artichoke, and cup plant), as well as biopreparations based on Bacillus megaterium, Trichoderma spp. and Azotobacter chroococcum. The results obtained showed that the highest yields were recorded in sorghum: Sudan grass (48.6 ± 1.2 t/ha) and sweet sorghum (46.8 ± 1.4 t/ha), whereas Jerusalem artichoke (38.4 ± 0.9 t/ha) and cup plant (32.6 ± 0.8 t/ha) lagged behind due to slower development in the first years. Combined treatment with biopreparations (Groundfix + Ekostern Trichoderma) provided a yield increase of up to 25.18% compared with the control, and sweet sorghum hybrid Verbliud achieved the maximum output of standard fuel equivalent (13.2 ± 0.4 t/ha) due to a high calorific value (4,120 kcal/kg). At the same time, raw-material moisture proved to be a key factor affecting energy efficiency. The conclusions confirm that the choice of crop, variety and biopreparation treatment is decisive for maximising energy output. The study's practical value is found in its recommendations for farmers on how to best cultivate phytoenergy crops in arid environments, which will advance bioenergy production and lessen the anthropogenic burden on agroecosystems.
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