Agronomic Optimization of Wide-Narrow Row Transplanting Spacing for the TU8 Rice Variety in Vietnam
Keywords:
TU8 rice, wide-narrow row planting, tillering ability, biomass accumulation, pest incidence, yield components, grain yield
Abstract
This study evaluated the effects of wide-narrow row planting patterns on growth, biomass accumulation, tillering ability, pest incidence, and yield of the TU8 rice variety. The T3, T4, and T5 planting patterns significantly increased plant height, dry biomass accumulation, and effective tillers compared to conventional patterns (T1 and T2). Simultaneously, these patterns markedly reduced the severity of rice blast, brown leaf spot, bacterial leaf blight, and insect pests, with T5 showing almost no pest incidence. Yield components, including panicles per m², grains per panicle, filled grain percentage, and 1000-grain weight, were improved, resulting in the highest grain yield of 6.64-6.69 t ha⁻¹ in T4 and T5. The results indicate that T4 and T5 are the optimal planting patterns, enhancing growth and yield while minimizing pest damage. This study provides a scientific basis for recommending wide-narrow row planting to achieve sustainable and high-yield rice production in Vietnam.
References
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Pham, T. V., Nguyen, Q. B., & Tran, H. P. (2020). Effects of planting distance on the growth and yield of rice in the Red River Delta. Vietnam Journal of Agricultural Science, 18(3), 55–63.
Reed, N. H., Butts, T. R., Norsworthy, J. K., Hardke, J. T., Barber, L. T., Bond, J. A., Bowman, H. D., Bateman, N. R., Poncet, A. M., & Kouame, K. B. J. (2024). Ecological implications of row width and cultivar selection on rice (Oryza sativa) and barnyardgrass (Echinochloa crus-galli). Scientific Reports, 14, 24844. https://doi.org/10.1038/s41598-024-76849-1
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Tang, L., Song, J., Cui, Y., Fan, H., & Wang, J. (2025). Research progress on a wide and narrow row cropping system. Agronomy, 15(1), 248. https://doi.org/10.3390/agronomy15010248
Zaman, Q. U., Javaid, S., Nazir, S., & Sharif, S. (2000). Rice plant growth and development. In Rice production knowledge and practices for ensuring food security (pp. 10-17).
Bui, H. D. (1999). Some issues on the rice plant. Agriculture Publishing House, Hanoi.
Connor, D. J. (2004). Cropping systems: Irrigated rice and wheat of the Indo-Gangetic Plains. In Encyclopedia of Plant and Crop Science (pp. 355–357). Marcel Dekker Inc.
Counce, P. A., Keisling, T. C., & Mitchell, A. J. (2000). A uniform, objective, and adaptive system for expressing rice development. Crop Science, 40(2), 436–443. https://doi.org/10.2135/cropsci2000.402436x
Dong, L., Li, X., Guo, T., & Wang, Y. (2022). Phytochrome-mediated shade avoidance and its role in plant architecture in rice. Frontiers in Plant Science, 13, 851234.
Dong, L., Yang, T., Ma, L., & Li, Y. (2025). Optimization of row and hill spacing patterns improved rice population structure and increased rice yield. Frontiers in Plant Science, 16, 1570845. https://doi.org/10.3389/fpls.2025.1570845
Hasan, M., Hossain, M., Uddin, M., Kobir, M., & Kabir, M. (2022). Effect of plant × row spacing on two varieties of Boro rice. SAARC Journal of Agriculture, 19(2), 95–106. https://doi.org/10.3329/sja.v19i2.57674
Juliano, B. O. (Ed.). (1994). Rice chemistry and technology (2nd printing). The American Association of Cereal Chemists.
Li, H., Zhou, M., & Liu, J. (2021). Effects of hill and row spacing on canopy structure, photosynthesis, and yield of rice under dense planting. Field Crops Research, 274, 108321.
Maclean, J., Hardy, B., & Hettel, G. (2013). Rice almanac: Source book for one of the most important economic activities on Earth (4th ed.). International Rice Research Institute (IRRI).
Nguyen, H. T., et al. (1997). Textbook of food crops, Vol. I: Rice. Agriculture Publishing House.
Nguyen, T. L., & Pham, T. D. (2005). Textbook of experimental methods. Agricultural Publishing House.
Nguyen, V. H. (2003). Rice and high-yield cultivation techniques for farmers. Nghe An Publishing House.
Nguyen, H. N. (2007). Vietnamese specialty rice. Agricultural Publishing House.
Nguyen, X. D., Le, Q. A., Do, T. T. H., & Le, T. T. (2016). Study on determining wide–narrow row transplanting spacing to exploit the border-row effect in hybrid rice (Thai Xuyen 111) production in Nam Dinh Province. Vietnam Journal of Agricultural Science and Technology, 5(66), 58–65.
Nguyen, T. D., & Nguyen, T. T. T. (2019). Study on the growth characteristics, development, and yield of several new pure rice varieties in the summer-autumn crop in Tu Son Town, Bac Ninh Province. Vietnam Journal of Agricultural Science and Technology, 4(101), 52–55.
Pham, T. V., Nguyen, Q. B., & Tran, H. P. (2020). Effects of planting distance on the growth and yield of rice in the Red River Delta. Vietnam Journal of Agricultural Science, 18(3), 55–63.
Reed, N. H., Butts, T. R., Norsworthy, J. K., Hardke, J. T., Barber, L. T., Bond, J. A., Bowman, H. D., Bateman, N. R., Poncet, A. M., & Kouame, K. B. J. (2024). Ecological implications of row width and cultivar selection on rice (Oryza sativa) and barnyardgrass (Echinochloa crus-galli). Scientific Reports, 14, 24844. https://doi.org/10.1038/s41598-024-76849-1
Singh, A. K., Pal, S., & Sharma, R. K. (2019). Plant spacing and nitrogen levels influence growth and yield attributes of transplanted rice. International Journal of Current Microbiology and Applied Sciences, 8(2), 1234-1242.
Tang, L., Song, J., Cui, Y., Fan, H., & Wang, J. (2025). Research progress on a wide and narrow row cropping system. Agronomy, 15(1), 248. https://doi.org/10.3390/agronomy15010248
Zaman, Q. U., Javaid, S., Nazir, S., & Sharif, S. (2000). Rice plant growth and development. In Rice production knowledge and practices for ensuring food security (pp. 10-17).
Published
2026-03-13
How to Cite
Huong, L. T., Van, N. T., Huyen, L. T. T., Trong, L. V., Thom, N. T., Duy, N. D., & Hao, V. T. (2026). Agronomic Optimization of Wide-Narrow Row Transplanting Spacing for the TU8 Rice Variety in Vietnam. European Journal of Science, Innovation and Technology, 6(1), 119-127. Retrieved from https://ejsit-journal.com/index.php/ejsit/article/view/746
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