This fertilizer experiment was undertaken at Bule hora district, Eastern Guji zone, southern Ethiopia in 2016. The objective of the experiment was to study the effect of different NP rates on the yield and yield components of Irish potato to determine biological and economic optimum NP rate at the area. Adapted and recommended variety of Irish potato variety (Gudane) was used for the experiment under rainfall. The treatment consisted of combination of five levels of N (0, 50, 80, 110 and 140 kg N ha-1) and four levels of P (0, 45, 90 and 135 kg P ha-1). Data were collected on parameters like plant height, number of branch per hill, tuber weight, marketable yield per hectare, unmarketable yield per hectare and total yield per hectare. ANOVA and Partial budget analysis were used to determine biological and economic optimum NP rate. Tuber yield was significantly affected by both P and N levels. There was also a significant N and P interaction effect on tuber yield. The maximum total tuber yield (195.06qt ha-1) was obtained when 50 kg N ha-1 and 135 Kg P ha-1 were combined, and it was closely followed by 193.21 qt ha-1 obtained at 110-90 kg ha-1 NP combinations, resulting in grain yield benefit of 361 and 358% over the control, respectively. Almost all collected parameters were significantly affected by P rate but did not respond to N rate. This could be due to substantial amount of total N in the soil (0.61%) which was in the high range. As to partial budget analysis, treatment 110-90 kg ha-1 NP combination had highest net benefit and acceptable marginal rate of return (473.67%). Based on this experiment, 110-90Kg ha-1 NP combination was found profitable and recommended for Irish potato farmers of Bule hora district and similar areas.
| Published in | International Journal of Agricultural Economics (Volume 1, Issue 3) |
| DOI | 10.11648/j.ijae.20160103.14 |
| Page(s) | 71-77 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Irish Potato, Fertilizer, Yield, Yield Component
| [1] | Eskin, N. and A. Michael, 1989. Quality and Preservation of vegetables. CRS press, Inc. Boca Raton, Florida, pp: 2-11. |
| [2] | Spooner D. M., McLean K., Ramsay G., 2005. A single domestication for potato based on multi-locus amplified fragment length polymorphism genotyping. Proceeding of National Acadamic Science 102: pp 14694-14699. |
| [3] | Robert W. and Cartwhight B., 2006. Potato production. Oklahoma Cooperative Extension Service, USA |
| [4] | Thompson, H. C. and Kelly, W. C. 1972. Vegitable crops (5th Edn.). McGraw Hill book Co., Newyork. P.372. |
| [5] | Berga L., Gebre-Medhin W., Teriessa J. and Bereketsehai T., 1992. Potato agronomy research. In: Horticulture research and development in Ethiopia (Herath and Lemma ed.). Proceedings of the 2nd national horticultural workshop of Ethiopia. Institute of agricultural research, Addis Ababa, Ethiopia. P 354. |
| [6] | Hawkes, J. G. 1990. Potato evolution, Biodiversity and Genetic resources. Beethoven Press, London. P.235. |
| [7] | FAO (Food and Agriculture Organization). 2014. FAO statistical databases FAOSTAT http://faostat3.fao.org/ Accessed 8 Jun 2015. |
| [8] | Girma A., Mathewos B., Shimellis D., Hailu G, and Gebremedhin W. G., (2004). Enhancing food security through Farmer Based seed system: the case of improved potato productiontechnology transfer in western Ethiopia, Research Report, Oromia Agricultural Research Institute (OARI). |
| [9] | Muthoni J. and Nyamongo D. O., 2009. A review of constraints to ware Irish potatoes production in Kenya. Journal of horticulture and forestry vol. 1(7). Kenya. |
| [10] | CSA (Central Statistical Agency). 2015. Crop Production Forecast Sample Survey, 2014/15. Report on Area and Production for Major Crops (for Private Peasant Holdings ‘Meher’ season). Addis Ababa, Ethiopia. |
| [11] | Gomez, K. and Gomez, A. A. 1984. Statistical Procedures for Agricultural Research. 2nd edition. John Willey & Sons Ltd., New York, USA.680pp. |
| [12] | SAS (Statistical Analysis System) Software. 2009. Version 9.2. Inc. Carry, North Carolina, USA. |
| [13] | CIMMYT (Centro Internacional de Mejoramiento de Maíz y Trigo). 1988. From agronomic data to farmers recommendations. Economic training manual, CIMMYT, Mexico, pp 84. |
| [14] | Mengel, K. and E. A. Kirkby. 1987. Principles of Plant Nutrition. (4th Ed.), International potash institute, Bern, Switzerland. |
| [15] | Zelalem, A., T. Takalign and D. Nigussie, 2009. Response of potato (Solanum tuberosum L.) to different rate of nitrogen and phosphorus fertilization on vertisols at Debre Birhan, in the central highlands of Ethiopia. Afr. J. Plant Sci., 3: 16-24. |
| [16] | Mulubrhan, H., 2004. The effects of nitrogen, phosphorus and potassium fertilization on the yield and yield components of potato (Solanum tuberosum L.), Grown on vertisols of Mekelle area Ethiopia. M. Sc. Thesis, School of Graduate Studies, Haramaya University, Ethiopia. |
APA Style
Desalegn Regassa, Wakene Tigre, Dawit Mellise, Tolessa Taye. (2016). Effects of Nitrogen and Phosphorus Fertilizer Levels on Yield and Yield Components of Irish Potato (Solanum tuberosum) at Bule Hora District, Eastern Guji Zone, Southern Ethiopia. International Journal of Agricultural Economics, 1(3), 71-77. https://doi.org/10.11648/j.ijae.20160103.14
ACS Style
Desalegn Regassa; Wakene Tigre; Dawit Mellise; Tolessa Taye. Effects of Nitrogen and Phosphorus Fertilizer Levels on Yield and Yield Components of Irish Potato (Solanum tuberosum) at Bule Hora District, Eastern Guji Zone, Southern Ethiopia. Int. J. Agric. Econ. 2016, 1(3), 71-77. doi: 10.11648/j.ijae.20160103.14
AMA Style
Desalegn Regassa, Wakene Tigre, Dawit Mellise, Tolessa Taye. Effects of Nitrogen and Phosphorus Fertilizer Levels on Yield and Yield Components of Irish Potato (Solanum tuberosum) at Bule Hora District, Eastern Guji Zone, Southern Ethiopia. Int J Agric Econ. 2016;1(3):71-77. doi: 10.11648/j.ijae.20160103.14
Share This Article
Twitter
Linked In
Facebook
Copy
Download@article{10.11648/j.ijae.20160103.14,
author = {Desalegn Regassa and Wakene Tigre and Dawit Mellise and Tolessa Taye},
title = {Effects of Nitrogen and Phosphorus Fertilizer Levels on Yield and Yield Components of Irish Potato (Solanum tuberosum) at Bule Hora District, Eastern Guji Zone, Southern Ethiopia},
journal = {International Journal of Agricultural Economics},
volume = {1},
number = {3},
pages = {71-77},
doi = {10.11648/j.ijae.20160103.14},
url = {https://doi.org/10.11648/j.ijae.20160103.14},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijae.20160103.14},
abstract = {This fertilizer experiment was undertaken at Bule hora district, Eastern Guji zone, southern Ethiopia in 2016. The objective of the experiment was to study the effect of different NP rates on the yield and yield components of Irish potato to determine biological and economic optimum NP rate at the area. Adapted and recommended variety of Irish potato variety (Gudane) was used for the experiment under rainfall. The treatment consisted of combination of five levels of N (0, 50, 80, 110 and 140 kg N ha-1) and four levels of P (0, 45, 90 and 135 kg P ha-1). Data were collected on parameters like plant height, number of branch per hill, tuber weight, marketable yield per hectare, unmarketable yield per hectare and total yield per hectare. ANOVA and Partial budget analysis were used to determine biological and economic optimum NP rate. Tuber yield was significantly affected by both P and N levels. There was also a significant N and P interaction effect on tuber yield. The maximum total tuber yield (195.06qt ha-1) was obtained when 50 kg N ha-1 and 135 Kg P ha-1 were combined, and it was closely followed by 193.21 qt ha-1 obtained at 110-90 kg ha-1 NP combinations, resulting in grain yield benefit of 361 and 358% over the control, respectively. Almost all collected parameters were significantly affected by P rate but did not respond to N rate. This could be due to substantial amount of total N in the soil (0.61%) which was in the high range. As to partial budget analysis, treatment 110-90 kg ha-1 NP combination had highest net benefit and acceptable marginal rate of return (473.67%). Based on this experiment, 110-90Kg ha-1 NP combination was found profitable and recommended for Irish potato farmers of Bule hora district and similar areas.},
year = {2016}
}
TY - JOUR T1 - Effects of Nitrogen and Phosphorus Fertilizer Levels on Yield and Yield Components of Irish Potato (Solanum tuberosum) at Bule Hora District, Eastern Guji Zone, Southern Ethiopia AU - Desalegn Regassa AU - Wakene Tigre AU - Dawit Mellise AU - Tolessa Taye Y1 - 2016/09/02 PY - 2016 N1 - https://doi.org/10.11648/j.ijae.20160103.14 DO - 10.11648/j.ijae.20160103.14 T2 - International Journal of Agricultural Economics JF - International Journal of Agricultural Economics JO - International Journal of Agricultural Economics SP - 71 EP - 77 PB - Science Publishing Group SN - 2575-3843 UR - https://doi.org/10.11648/j.ijae.20160103.14 AB - This fertilizer experiment was undertaken at Bule hora district, Eastern Guji zone, southern Ethiopia in 2016. The objective of the experiment was to study the effect of different NP rates on the yield and yield components of Irish potato to determine biological and economic optimum NP rate at the area. Adapted and recommended variety of Irish potato variety (Gudane) was used for the experiment under rainfall. The treatment consisted of combination of five levels of N (0, 50, 80, 110 and 140 kg N ha-1) and four levels of P (0, 45, 90 and 135 kg P ha-1). Data were collected on parameters like plant height, number of branch per hill, tuber weight, marketable yield per hectare, unmarketable yield per hectare and total yield per hectare. ANOVA and Partial budget analysis were used to determine biological and economic optimum NP rate. Tuber yield was significantly affected by both P and N levels. There was also a significant N and P interaction effect on tuber yield. The maximum total tuber yield (195.06qt ha-1) was obtained when 50 kg N ha-1 and 135 Kg P ha-1 were combined, and it was closely followed by 193.21 qt ha-1 obtained at 110-90 kg ha-1 NP combinations, resulting in grain yield benefit of 361 and 358% over the control, respectively. Almost all collected parameters were significantly affected by P rate but did not respond to N rate. This could be due to substantial amount of total N in the soil (0.61%) which was in the high range. As to partial budget analysis, treatment 110-90 kg ha-1 NP combination had highest net benefit and acceptable marginal rate of return (473.67%). Based on this experiment, 110-90Kg ha-1 NP combination was found profitable and recommended for Irish potato farmers of Bule hora district and similar areas. VL - 1 IS - 3 ER -
Information
Email: