UDC 635.62:631.52:631.8
https://doi.org/10.25630/PAV.2026.47.32.002
Ostonakulov T.E., Adilov M.M., Meylieva Kh.Sh.
The aim of the study was to investigate the growth and development characteristics, bush formation, vegetative mass, root system, and leaf area, as well as the photosynthetic potential, productivity indicators, and yield of selected adaptive cucumber hybrids grown as a repeated crop under various rates of organic and mineral fertilizers, sowing schemes, and planting densities. Field experiments were conducted at the farmer enterprise “Asr Chorva Servis” in the Guzar district. The experimental plots consisted of irrigated light gray soils with a loam-sandy mechanical composition. The depth of groundwater was 20–25 meters or deeper. Agrochemical characteristics of the arable layer (0–30 cm) were as follows: humus content 0.79–0.87%, pH = 7.1, soil bulk density 1.27–1.30 g/cm³, soil particle density 2.5–2.6 g/cm³, total nitrogen 0.10–0.13%, total phosphorus 0.15–0.20%, potassium 2.23–2.31%, nitrate nitrogen 5.69–8.30 mg/ha, ammonium nitrogen 2.44–3.76 mg/kg, available phosphorus 12.32–14.40 mg/kg, exchangeable potassium 194–206 mg/kg. The study presents results on the growth, development, leaf area formation, photosynthetic potential and activity, productivity, and yield of the adaptive cucumber hybrids Record F1 and Fontina F1 as a repeated crop under various fertilizer rates, sowing schemes, and planting densities. It was found that cultivating the selected adaptive cucumber hybrids as a repeated crop with the application of organic and mineral fertilizers at a rate of 20 t/ha of manure + N200P160K100 kg/ha, sown according to the scheme (180+60):2x40 cm with a planting density of 20.8 thousand plants per hectare, resulted in the highest yield of 36.8–37.5 t/ha, of which 35.8–36.6 t/ha (97.2–97.6%) was marketable yield. The yield increase amounted to 6.0–6.5 t/ha or 119.8–120.5%. Furthermore, analyses confirmed improvements in biochemical composition and fruit quality, including an increase in dry matter by 0.1–0.3%, sugar content by 0.1–0.2%, and vitamin C by 3.0–8.0 mg/%.
Key words: cucumber, hybrids, repeated crop, organomineral fertilizer rates, sowing scheme, planting density, growing season, main stem length, leaf area, photosynthetic potential, productivity, marketable yield, biochemical composition
Ostonakulov T.E., D.Sci. (Agr.), professor, Karshi State University. E-mail: t-ostonokulov@mail.ru
Adilov M.M., D.Sci. (Agr.), professor of Tashkent State Agrarian University. E-mail: m.m.adilov@mail.ru
Meylieva Kh.Sh., applicant, Karshi State University
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PDF(Rus)
For citing: Ostonakulov T.E., Adilov M.M., Meylieva Kh.Sh. Yield of cucumber hybrids depending on plating scheme, plant density, and fertilizer rates. Potato and vegetables. 2026. No3. Pp. 27-30. https://doi.org/10.25630/PAV.2026.47.32.002 (In Russ.).
