Response of rice to nitrogen rate and inter-row spacing at guraferda and gojeb south western Ethiopia
Rice is a major cereal crop in Gojeb and Guraferda areas. However, the crop yield is low due to lack of site-specific recommendations on Nitrogen rate and inter-row spacing. Accordingly, a field experiment was conducted at Gojeb and Guraferda, southern Ethiopia, in 2019 to evaluate the response of rice to Nitrogen rate (0,32, 64, and 96kg) and inter-row spacing (20cm, 25cm and 30cm) during the rainy season. The treatments laid out on Randomized complete block design with three replications. The phenological and yield related parameters were recorded. Analysis of variance done by using SAS version 9.3 and mean separation for significant treatments were done by least significant difference. Results of the study indicated that both Nitrogen fertilizer rate and inter-row spacing had a significant effect on growth and yield parameters. As a result, total number of tillers and grain yield were highly significantly (p<0.01) affected by main effects of Nitrogen fertilizer rate and inter-row spacing. However, days to maturity and plant height were significantly (p<0.01) affected by Nitrogen fertilizer rate. Generally, 96kg of Nitrogen fertilizer was found to be suitable for production of the highest grain yield (4090.5 kg ha-1). Inter-row spacing at 25 cm and 30 cm inter-row spacing had given the highest yield. Therefore, the outcome of this study revealed that the Nitrogen fertilizer rate of 96kg ha-1and inter-row spacing of 25 cm could be feasible and can be recommended for the study area with the assistance of extension field staff.
Ananthi, T., M. M. Amanullah and K. Subramanian. 2010. Influence of mycorrhizal and synthetic fertilizers on soil nutrient status and uptake in hybrid maize. Madras Agricultural Journal, 97: 374-78.
Anwar, F., M. Siddiqui, S. S. Alghamdi, M. Al–Whaibi and A. Chandra. 2011. Nitrogen use-efficiency and crop production-A Mini Review. Environment We International Journal Science Technology, 6: 167-74.
Bekele, A. F. 2016. Influence of Phosphorous and Nitrogen Fertilizer Rate on Grain Yield of Rice at Kamashi Zone of Benshal-gul Gumuz Region, Ethiopia. Journal of World Economic Research, 5: 8.
Central Statistical Agency. 2016. Agricultural sample survey Report on area and Production of major crops. Central Statistical Agency of Ethiopia, Addis Ababa, Ethiopia, 1: Statistical bulletin; 584. Place Published.
Chaturvedi, I. 2005. Effect of nitrogen fertilizers on growth, yield and quality of hybrid rice (Oryza sativa). Journal of Central European Agriculture, 6: 611-18.
De-Datta, S. K. and J. W. H. Patrick. 1986. Nitrogen economy of flooded rice soils. Martinus Delhi. Nijhoff, the Netherlands. 186p. Place Published.
Jiban, S. 2013. Effect of nitrogen and plant population on flowering and grain yield of winter maize. Sky Journal of Agricultural Research, 2: 64-68.
Kandil, A., S. El-Kalla, A. Badawi and O. M. El-Shayb. 2010. Effect of hill spacing, nitrogen levels and harvest date on rice productivity and grain quality. Crop Environ, 1: 22-26.
Khan, M. B., T. A. Yasir and M. Aman. 2005. Growth and yield comparison of different linseed (Linum usitatissimum L.) genotypes planted at different row spacing. J. Agric. Biol, 7: 515-17.
Manzoor, Z., T. H. Awan, M. E. Safdar, R. I. Ali, M. M. Ashraf and M. Ahmad. 2006. Effect of nitrogen levels on yield and yield components of Basmati 2000. J. Agric. Res, 44: 115-20.
Marschner, H. 1995. Mineral Nutrition and Yield Response. Elsevier. Place Published. pp.184-200.
Nesgea, S., H. Gebrekidan, J. Sharma and T. Berhe. 2012. Effects of nitrogen and phosphorus fertilizer application on yield attributes, grain yield and quality of rain fed rice (NERICA-3) in Gambella, Southwestern Ethiopia. East African Journal of Sciences, 6: 91-104.
Samonte, S. O. P. B., L. T. Wilson, J. C. Medley, S. R. M. Pinson, A. M. McClung and J. S. Lales. 2006. Nitrogen Utilization Efficiency: Relationships with Grain Yield, Grain Protein, and Yield‐Related Traits in Rice. Agronomy Journal, 98: 168-76.
Sewenet, A. 2005. Effects of nitrogen and seed rates on grain yield, yield components and nitrogen uptake of rain fed rice (Oryza sativa L.) in Fogera, South Gondar (Doctoral dissertation, M.Sc. Thesis Presented to the School of Graduate Studies of Haramaya University, Ethiopia). Place Published.
Shakouri, M. J., A. V. Vajargah, M. G. Gavabar, S. Mafakheri and M. Zargar. 2012. Rice vegetative response to different biological and chemical fertilizers. Advances in Environmental Biology: 859-63.
Tanaka, K., Z. Kasai and M. Ogawa. 1995. Physiology of ripening. pp.97-118. In: T. Matsuo, K. Kumazawa, R.Ishii, K.Ishihara, and H. Hirata, (eds) .The Science of the Rice Plant. Vol.2. Food and Agriculture Policy Research Center, Tokyo. Place Published.
- There are currently no refbacks.
Copyright (c) 2021 Ashenafi Abriham
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.