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ISSN: 2360-7874 |
Academic Research Journal of
Agricultural Science and Research |
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Vol. 8(4), pp. 399-410, May 2020 Research Phosphorus and Sulphur uptake and utilization efficiency in response to Lentil (Lens culinaris Medikus) productivity in central highlands of Ethiopia Gebrekidan Feleke Mekuria1*, Walelign Worku2 and Asnake Fikre3
1 ,3Debre Zeit Agricultural Research Center, Ethiopian Institute of Agricultural Research, Debre Zeit, Ethiopia; 2 School of Plant and Horticultural Sciences, College of Agriculture, Hawassa University, Hawassa, Ethiopia. *Corresponding author. E-mail: gebrekidan336@gmail.com
Accepted 26 May 2020
Recently, one of the causes of the current stagnating yield levels of lentil is the deficiency or imbalance of essential plant nutrients. To provide insight on this phenomenon, a field experiment was conducted to evaluate the effect of phosphorus and Sulphur fertilization on lentil productivity and determine the P and S uptake and utilization efficiency of lentil. The experiment consisted of four levels of P (0,10,20 and 30 kg P ha-1) and three levels of S (0, 20 and 40 kg S ha-1) in RCBD with factorial arrangement of treatment combinations and replicated three times. The results revealed that interaction of P and S at 20/20 kg ha-1 application enhanced grain yield, P uptake in grain and haulm and S uptake in haulm over the other interaction as well as the main effect. Similarly, grain S uptake, P and S recovery efficiency and harvest index of lentil were significantly enhanced among the combined of P and S fertilization. Individual agronomic efficiency of P and S were also improved at the lower rate of P and S, but it decreased with increasing P and S levels, respectively. Even if, the partial budget analysis suggested that separate P and S application were cost-effective as compared to combined application, the present finding signified that fertilizer use efficiency, nutrient uptake and grain yield of lentil improved by the joint application of phosphorus and Sulphur. Therefore, further trials are required to formulate comprehensive suggestions concerning accurate ratio of the P and S on lentil production.
Keywords: agronomic efficiency; nutrient harvest index; nutrient uptake; phosphorus; recovery efficiency; Sulphur
How to cite this article (APA Style): Gebrekidan, F.M., Walelign, W., Asnake, F (2020). Phosphorus and Sulphur uptake and utilization efficiency in response to Lentil (Lens culinaris Medikus) productivity in central highlands of Ethiopia. Acad. Res. J. Agri. Sci. Res. 8(4): 399-410
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