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ISSN: 2360-7874 |
Academic Research Journal of
Agricultural Science and Research |
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Vol. 8(2), pp. 118-127, March 2020 Research Effects of Nitrogen and Phosphorous on Yield and Yield Component of Sage (Saliva officinal's L.) at Wondo Genet and Koka, Ethiopia
Belstie Lulie1, Abraham Yakob2, Melkamu Hordofa3 and Ashenafi Nigussie4
1,2,3,4 Ethiopian Institute of Agricultural Research, Wondo Genet Agricultural Research Center Corresponding Author: kbelstie@yahoo.com or eldum2007@gmail.com
Accepted 15 March 2020
Field experiment was conducted at Wondo Genet Agricultural Research Center and Koka substation in 2017/2018 and 2018/2019 cropping season in order to identify economically optimum nitrogen and phosphorus rates for some selected agronomic characteristics, essential oil yield and oil content of sage. Four nitrogen levels (0, 46, 92 and 138 kg N ha-1) and four phosphorus levels (0, 30, 60 and 90 kg P ha-1) would be laid out in factorial RCBD with three replications. At both testing sites, results revealed that plant height, leaf and stem fresh and dry weight, above ground fresh biomass, essential oil yield were significantly affected by separate effect of nitrogen and phosphorus rates. At koka, essential oil content, on the other hand, was significantly affected by nitrogen and phosphorus while didn’t show any significant variation at Wondo Genet. At both testing sites, the interaction effect didn’t show any significant effect in all collected parameters. At Wondo Genet, application of 46 kg N ha-1 and 30 kg P ha-1 gave the highest plant height, leaf and stem fresh and dry weight, above ground fresh biomass and essential oil yield of sage. Similarly, at koka, the highest plant height, leaf and stem dry weight were obtained at 138 kg N and 30 kg P ha-1; leaf fresh weight at 46 kg N ha-1 and 30kg P ha-1; above ground fresh biomass at 138 kg N and 60kg P ha-1; EOY at 46kg N and 60 kg P ha-1and EOC at 0 kg N and 30kg P ha-1. Thus, at Wondo Genet N and p at the rate of 46 kg N ha-1 and 30 kg P ha-1could be recommended for maximum economic yield of sage. While at Koka and other similar soil type and agro ecologies, application of N and P at the rate of 46 and 30 kg for leaf fresh weight;138 kg N and 30 kg P ha-1for leaf dry weight and 46 and 60 for essential oil yield is recommended.
Key words: Sage, Nitrogen and Phosphorus, oil content and oil yield
How to cite this article (APA Style): Belstie L., Abraham Y., Melkamu H., Ashenafi N (2020). Effects of Nitrogen and Phosphorous on Yield and Yield Component of Sage (Saliva officinal's L.) at Wondo Genet and Koka, Ethiopia. Acad. Res. J. Agri. Sci. Res. 8(2): 118-127
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