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ISSN: 2320-964X (Online) 

ISSN: 2320-7817  (Print)



Dr. Santosh Pawar 




Int. Journal of Life Sciences, 2018; 6(1): 60-68       |                 Available online, February 24, 2018

Effect of NPK and blended fertilizer application on Yield, Yield Component and its profitability of Sorghum (Sorghum bicolor (L.) Moench) varieties under rainfed condition in north western Tigray, Ethiopia


Redai Weldegebriel1*, Tesfay Araya2 and Yemane G. Egziabher3



1Tigray Agricultural Research Institute (TARI), Shire-mytsebri Agricultural Research Center (SMARC) P.O.Box 241, Shire, Ethiopia | 2 Department of Agronomy, University of Fort Hare, PBX1314, Alice 5700, South Africa

3. Mekelle University, Department of Dryland Crops and Horticultural Sciences, College of Dryland Agriculture and Natural Resources, Mekelle, Ethiopia

*Corresponding author E-mail:


Received : 06.10.2017     |   Accepted : 19.01.2018    |  Published : 24.02.2018

Sorghum (Sorghum bicolar (L.) Moench) is an important cereal crop, which requires high dose of nutrient for optimum growth and productivity. Even though it is highly adapted to different agro ecology, its yield is constrained by declining soil fertility due to nutrient depletion, low level of fertilizer use and unblended application of fertilizer. An experiment was conducted in Shire-mytsebri Agricultural Research Center; at Sheraro sub site in north western Tigray, Ethiopia, during the main cropping season of 2016 with the aim of to evaluate the effects of NPK and blended fertilizers on yield, yield components and economic profitability of selected sorghum varieties. The treatments comprised factorial combination of ten levels of fertilizers (N, P, Blanket recommendation (NP), NPK, NPS, NPKS, NPKSZn, NPKSZnB, NPKSZnB Agricultural Transformation Agency (ATA) and Control (0) and two sorghum varieties (Melkam and Dekeba) tested in a Factorial Randomized Block Design(RCBD) with three replication. A data of Phenological parameters, yield and yield components were taken. There was significant interaction effect of fertilizer treatments and sorghum varieties on most of parameters studied. Significantly higher grain yield was recorded in Melkam (5541 kgha-1) treated by NPKSZn. Biomass yield was obtained higher at NPK from Melkam (21087 kgha-1) and Economic analysis indicated that the application of NPKSZn to Melkam variety accrued the highest gross and net return. Application of NPK to Melkam variety accrued the highest benefit: cost ratio. Even though the highest biomass yield and grain yield were recorded in Melkam treated with NPKSZn but the highest % MRR was recorded for Melkam treated by NPK. Thus, farmers can use fertilizer containing NPK to improve sorghum yield at profitability level.


Key words: Blended fertilizer, Dekeba, Melkam, Profitability



Editor: Dr.Arvind Chavhan


Cite this article as:

Redai Weldegebriel, Tesfay Araya and Yemane G Egziabher (2018) Effect of NPK and blended fertilizer application on Yield, Yield Component and its profitability of Sorghum (Sorghum bicolor (L.) Moench) varieties under rainfed condition in north western Tigray, Ethiopia, Int. J. of. Life Sciences, Volume 6(1): 60-68. 


Conflicts of interest: The authors stated that no conflicts of interest.



Copyright: © 2018 | Author(s), This is an open access article under the terms of the Creative Commons Attribution-Non-Commercial - No Derives License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.



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