The Economic Feasibility of Sweet Potatos Farming by Using Selected N Fertilization

Dian Adi Anggraeni Elisabeth, Erliana Ginting, Joko Restuono


Sweet potato is normally cultivated in wet land after rice or in dry land during rainy season. N fertilization is commonly applied to increase sweet potato yield. Therefore, the economic feasibility of using selected N fertilizer in sweet potato farming in dry land was studied. Three improved varieties, namely Jago (white-fleshed), Beta 2 (orange-fleshed), and Antin 2 (purple-fleshed) were grown at the Experimental Station of Muneng, East Java and treated with six N fertilization as follows: F1= 0 N fertilization as a check; F2= 50 kg/ha of Urea; F3= 100 kg/ha of Urea; F4= 100 kg/ha of ZA; F5= 200 kg/ha of ZA; and F6= 5,000 kg/ha of manure. The treatment is assumed to be economically viable if the value of Marginal Benefit Cost Ratio (MBCR) is greater than 1. The results showed that the combination of  F2 with Beta 2, F3 with Antin 2, and F5 with Beta 2 were viable with the MBCR value of 17.13, 25.85, and 11.61, respectively. Although the data was limited, the study tentatively concludes that profitable N fertilization for sweet potato farming considerably depends on differences in yield, N fertilizer source and dose, as well as selling price of particular variety.

JEL Classification: C93, D24, Q12


feasibility analysis; sweet potato farming; N fertilizer; improved varieties

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Abah, J., Akan, J., Uwah, E., & Ogugbuaja, V. . (2008). Levels of Some Anions in Tuber Crops Grown in Benue State, Nigeria. Trends in Applied Sciences Research, , (3), 196–202.

Abdissa, T., Dechassa, N., & Alemayehu, Y. (2012). Sweet Potato Growth Parameters as Affected by Farmyard Manure and Phosphorus Application at Adami Tulu, Central Rift Valley of Ethiopia. Agricultural Science Research Journal, 2(1), 1–12. Retrieved from

Ankumah, R. O., Khan, V., Mwamba, K., & Kpomblekou-A, K. (2003). The influence of source and timing of nitrogen fertilizers on yield and nitrogen use efficiency of four sweet potato cultivars. Agriculture, Ecosystems and Environment, 100(2–3), 201–207.

BPS. (2016). Statistik Indonesia 2016. (BPS Pusat Jakarta, Ed.), Statistik Indonesia. Jakarta: BPS Pusat Jakarta. Retrieved from

Bundy, L. G., & Andraski, T. W. (2005). Recovery of Fertilizer Nitrogen in Crop Residues and Cover Crops on an Irrigated Sandy Soil. Soil Science Society of America Journal, 69(3), 640.

FAO. (1990). Guidelines for the conduct of a training course in farming systems development. (F. and A. O. of the U. Nations, Ed.). Rome: Food and Agriculture Organization of the United Nations.

Ginting, E., Utomo, J. S., & Yulifianti, R. (2014). Potensi Ubijalar Ungu Sebagai Pangan Fungsional. Iptek Tanaman Pangan, 6(1), 116–138. Retrieved from

Harris, P. M. (1992). The potato crop: the scientific basis for improvement. Chapman & Hall. Retrieved from

Hartemink, A. E., Johnston, M., O’Sullivan, J. N., & Poloma, S. (2000). Nitrogen use efficiency of taro and sweet potato in the humid lowlands of Papua New Guinea. Agriculture, Ecosystems and Environment, 79(2–3), 271–280.

Indonesian Legumes and Tuber Crops Research Institute (ILETRI). (2012). Description of legumes and tuber crops improved varieties. (in Bahasa Indonesia). Malang. Retrieved from

Indonesian Legumes and Tuber Crops Research Institute (ILETRI). (2016). Deskripsi Varietas Ubi Jalar 1977-2016. Malang. Retrieved from

Jett, L., & Mulkey, W. (1996). Nitrogen fertilizer effects on growth and yield sweetpotato. Hort Science. , 31(5), 759. Retrieved from

Jusuf, M., & Ginting, E. (2014). The prospects and challenges of sweet potato as bio-ethanol source in Indonesia. Energy Procedia, 47, 173–179.

Shaaban, H., & Kisetu, E. (2014). Response of Irish potato to NPK fertilizer application and its economic return when grown on an Ultisol of morogoro, tanzania. Journal of Agricultural and Crop Research, 2(9), 188–196.

Villagarcia, M. R. (1998). Nitrate uptake and nitrogen use efficiency of two sweetpotato genotypes during early stages of storage root formation. Journal-of-the-American-Society-for-Horticultural-Science; Sept 1998; 123(5): 814-820, Sept; 123(5), 814–820. Retrieved from

Wang, Z.-H., Li, S.-X., & Malhi, S. (2007). Effects of fertilization and other agronomic measures on nutritional quality of crops. Journal of the Science of Food and Agriculture, 88(1), 7–23.

Zamil, M., Rahman, M., Rabbani, M., & Khatun, T. (2010). Combined effect of nitrogen and plant spacing on the growth and yield of potato with economic performance. Bangladesh Res. Public. J. , 3(3), 1062–1070.


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