EFFECT OF AGROTECHNICAL FACTORS ON THE GROWTH, DEVELOPMENT AND PRODUCTIVITY OF BLACK CUMIN (NIGELLA SATIVA L.) (IN THE CONDITIONS OF NUKUS).
Keywords:
Nigella sativa L.; black cumin; sowing time; planting pattern; seed rate; yield.Abstract
Under the salinized soil conditions of the Republic of Karakalpakstan, research was carried out in Nukus during 2022–2024 to develop an improved cultivation technology for Black Cumin (Nigella sativa L.). The study investigated the effects of major agrotechnical factors - including sowing date, planting arrangement (row and plant spacing), and seed rate - on the plant’s growth dynamics, developmental phases, and seed yield performance. Based on the results of the study, the optimal conditions for maximizing seed yield were determined to involve sowing during the second ten-day period of April (approximately April 12), adopting a planting configuration of 45 cm row spacing and 15 cm intra-row spacing, and applying a seed rate of 10 kg per hectare. This combination of agronomic parameters proved to be the most effective in ensuring the highest seed productivity. The findings generated in this study provide scientifically grounded and practically applicable recommendations that can significantly enhance the efficiency of Black Cumin (Nigella sativa L.) cultivation under the specific agro-environmental conditions of the Nukus region.
References
1. Aminpour, R., et al. (2015). Effect of plant density on growth and essential oil of Nigella sativa L. Journal of Medicinal Plants, 14(56), 98–104.
2. Ashraf M., Ali Q., Rha E. S. The effect of applied nitrogen on the growth and nutrient concentration of kalonji (Nigella sativa). Australian Journal of Experimental Agriculture. 2005; 45(4): 459–463.
3. El-Kadi, A., et al. (2013). Effect of row spacing on yield and yield components of black cumin (Nigella sativa L.). Egyptian Journal of Agricultural Research, 91(4), 1251–1262
4. Hammo Y. H. Effect of high levels of nitrogen and phosphorous fertilizer, pinching, and seed rate on growth and yield components of Nigella sativa L. 1-Vegetative growth and seed yield. Mesopotamia Journal of Agriculture. 2008; 36(1): 34–32.
5. Khalid, K.A., & Shedeed, M.R. (2018). Effect of sowing dates and spacing on Nigella sativa under arid conditions. Acta Horticulturae, 1192, 75–80.
6. Mousa G. T., Gad M. M., Ahmed G. A., Mohamed S. A. Comparative study on black cumin (Nigella sativa, l.) plants, grown under different plant spacing and fertilization treatments //Assiut Journal of Agricultural Sciences. – 2012. – Т. 43. – №. 6. – С. 58-72.
7. Mustafaqulov D.M. Ekish me’yorlarining sudan o‘tining o‘sish-rivojlanishi va hosildorligiga ta’siri. O‘zbekiston agrar fani xabarnomasi, 2020 y., №4 (82). - B. 77-81.
8. Rahimi, M., et al. (2020). Influence of different plant densities on the growth characteristics and seed yield of Nigella sativa L. Journal of Crop Production, 10(3), 45–52.
9. I. Roussis, I. Kakabouki, D. Beslemes, E. Tigka, C. Kosma, V. Triantafyllidis, D. Bilalis. Nitrogen uptake, use efficiency, and productivity of Nigella sativa L. in response to fertilization and plant density. Sustainability. 2022; 14(7): 3842.
10. Saidov, Sh., & To‘xtayev,B. Qora sedana yetishtirish texnologiyasini takomillashtirish.(2021) Agrar fanlar jurnali, №4, 56–61
11. Toncer O., Kizil S. Effect of seed rate on agronomic and technologic characters of Nigella sativa L.. International Journal of Agriculture and Biology. 2004; 6(3): 529–532.
