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Features of the growth and development of rice plants during aerobic cultivation | ||
| Caspian Journal of Environmental Sciences | ||
| مقالات آماده انتشار، اصلاح شده برای چاپ، انتشار آنلاین از تاریخ 01 مرداد 1404 | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22124/cjes.2025.8917 | ||
| نویسندگان | ||
| Ainur Doszhanova* 1؛ Zhumagali Ospanbayev1؛ Yerzhan Abildayev1؛ Gulnar Myrzabaeva1؛ Aizada Sembayeva1؛ Nurbakyt Kurmangaliyeva2؛ Bolat Murzabaev3؛ Muhit Bekbauov1 | ||
| 1Kazakh National Agrarian Research University, Abay st. 8, 050043, Almaty, Kazakhstan | ||
| 2Kazakh Research Institute of Plant Protection and Quarantine named after Zh. Zhiembayeva, Kultobe st. 1, 050070, Almaty, Kazakhstan | ||
| 3M. Auezov South Kazakhstan Research University, Тauke khan st. 5, 160012, Shymkent, Kazakhstan | ||
| چکیده | ||
| Addressing food security amid climate change and limited water resources has made sustainable rice cultivation increasingly important, especially in semi-arid regions like Kazakhstan’s Balkhash area. In 2024, a comprehensive field experiment was carried out to assess rice growth and development under aerobic cultivation, using a factorial design with three replications. The study evaluated three irrigation methods (traditional flooding, drip, and sprinkler), two planting layouts (conventional 15 cm spacing and wider 60 × 30 cm strips), three planting dates (April 10, May 1, and May 20), seven rice varieties (both local Kazakh and imported), and three weed control approaches (mechanical, chemical, and integrated). Drip irrigation demonstrated the highest water use efficiency (WUE<sub>p</sub> = 0.71 kg m-³), reducing water consumption by 41% compared to flooding. While overall yields with drip irrigation were 12% lower than with traditional flooding, certain native cultivars (Aq Marjan and Sir Soloi) experienced a comparatively modest 7% yield reduction. These varieties exhibited deeper root systems (42.3 cm) and greater lateral root density (11.2 cm cm-³). The May 20 planting date produced the highest yield (5.9 tons ha-1), likely due to avoidance of early-season cold stress. Integrated weed control reduced weed biomass by 78%. These findings underscore the potential of aerobic rice cultivation, particularly when appropriate varieties and management practices are employed. The approach can achieve up to 50% water savings without significant yield loss, supporting the viability of sustainable rice production in Kazakhstan’s water-limited environments | ||
| کلیدواژه‌ها | ||
| Aerobic rice cultivation؛ Water use efficiency؛ Cultivar adaptation؛ Sustainable agriculture؛ Kazakhstan | ||
| مراجع | ||
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