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The Effect of N and P Fertilizers on Yield and Yield Components of Sesame (Sesamum indicum L.) in Low-Fertile Soil of North-Western Ethiopia

1
Ethiopian Institute of Agricultural Research, Tigray Agricultural Research Institute, Humera Agricultural Research Center, Crop Department, Humera P.O. BOX 62, Ethiopia
2
Department of Plant and Environmental Sciences, University of Copenhagen, Højbakkegaard Allé 13, DK-2630 Taastrup, Denmark
*
Author to whom correspondence should be addressed.
Agriculture 2019, 9(10), 227; https://doi.org/10.3390/agriculture9100227
Received: 16 August 2019 / Revised: 2 October 2019 / Accepted: 15 October 2019 / Published: 19 October 2019
The impact of fertilizer of N and P on the yield of sesame in north-western Ethiopia was investigated. Field experiments were conducted in 2010 and 2011. Six levels of urea and six levels of di-ammonium phosphate were applied using a factorial completely randomized block design. Application of N and P increased the plant height, the number of capsules plant−1, and the yield ha−1. The number of days to flower decreased with increasing rates of nitrogen. The number of days to maturity was largest (91 days) at a rate of 23 kg N ha−1. Applying 92 kg N ha−1 resulted in a yield of 917.8 kg ha−1 and a plant height of 104 cm. An application of 92 kg P ha−1 with 36 Kg N ha−1 gave a yield of 908 kg ha−1 and a plant height of 103.4 cm. The interaction between N and P significantly affected the number of days to flower, plant height, the number of capsules plant−1, and yield ha−1. Applying 128 kg N ha−1 and 92 kg P ha−1 gave the biggest yield (1043 kg ha−1). However, application of 41 kg N ha−1 and 46 kg P ha−1 gave the largest marginal rate of return. View Full-Text
Keywords: African crop; benne; oilseeds; sesamum African crop; benne; oilseeds; sesamum
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Amare, M.; Fisseha, D.; Andreasen, C. The Effect of N and P Fertilizers on Yield and Yield Components of Sesame (Sesamum indicum L.) in Low-Fertile Soil of North-Western Ethiopia. Agriculture 2019, 9, 227.

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