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Information × Registration Number 0222U005154, 0122U000641 , R & D reports Title Adaptability assessment and winter wheat yield forecast in the southeastern part of the Steppe with variable abiotic environmental factors popup.stage_title Head Chaban Volodymyr I., Кандидат сільськогосподарських наук Registration Date 20-12-2022 Organization State Institution "Institute of Grain Crops" of the National Academy of Agrarian Sciences of Ukraine popup.description2 The object of the study is the regularities of the formation of winter wheat productivity on ordinary chernozem under variable abiotic factors. The purpose of the study is to assess the adaptability of winter wheat and predict its yield in the southeastern part of the Steppe under changes in abiotic factors. Research methods - field, comparative and statistical analysis. Heat resources are increasing in the region for the period 1991–2020. The average annual temperature increased by 0.8° (9.4 and 8.6 °C). The duration of the period with temperature >5 °C increased by 13 days (from 212 to 225). Moisture conditions did not change (510 and 523 mm). The winter wheat harvest for 1992–2021 depended on: black steam (5.78 t/ha); annual herbs (5.19 t/ha); peas (4.90 t/ha); corn of the Ministry of Internal Affairs (4.01 t/ha). Winter wheat formed moderately stable crops of black pair (Cv = 28%); unstable crops - after safflower and peas (Cv = 37–38%); the most unstable - for corn MVD (Cv = 42%). The efficiency of fertilization systems is as follows: organic (14%) < organo-mineral (28%) < and mineral (32%). A higher crop yield is formed by tillage based on chiseling, compared to shelf tillage, when placed after steam and asparagus (by 0.21 and 0.32 t/ha). According to others, it was at the same level (4.90 ÷ 4.90 and 4.02 ÷ 4.00 t/ha). The share of influence of the factors on the harvest was: predecessor – 47%; fertilizer systems - 34%; tillage - 2%. However, based on the general trend of increasing yields over time, under favorable weather conditions, one should give preference to the optimistic forecast – 4.47 t / ha in 2026. Economic calculations indicate that the harvest of winter wheat after black steam provides a net income of 9,200 UAH/ha - a profitability of 43%. On non-pair predecessors (MIA corn, annual grasses, peas), the profit is 3150-5930 UAH /ha - profitability 15-28%. Product Description popup.authors popup.nrat_date 2022-12-20 Close