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Effect of potassium and sowing time on potato yield and quality

Mujeeb Ur Rehman, Muhammad Jamal Khan, Mujib Ur Rehman, Hanif Khan, Ihsan Muhammad, Irfan Ullahe, Hafiz Ullah, Umar Zeb


The current study was conducted the effect of sowing time and different doses of a potassium supplement on yield attributes of potato at Gollen valley Chitral, the Northern Pakistan during summer 2018. Sowing Potato (cv. Roko) commenced from 5thMay and continued till 5thJune keeping an interval of 15 days among sowing times. Potassium (K) was applied at the rate of 100, 150, 200 and 250 kg ha-1 as potassium chloride. Basal doses of nitrogen (N) and phosphorus (P) were applied at the rate 120 and 100 kg ha-1 respectively, as urea and DAP. All yield attributes like number of leaves per plant, plant height, the number of tubers per plant, tuber volume and yield of potato were higher for May 5th (early sowing date) with potassium dose of 200 kg ha-1. Interaction of sowing dates and Potassium (SD×K) for yield, tuber volume and soil potassium content was statistically significant (P≤0.05). The study showed that by delaying the sowing season, yield traits and yield of potato decreased significantly; hence early cultivation and K fertilization of 200 kg ha-1 resulted in maximum production of potato as well as improved soil properties under agroclimatic conditions of the region which is a dry temperate zone of Pakistan


Potassium Levels, sowing time, potato yield, Chitral, Pakistan

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Abbas, M. F., S. Hameed, A. Rauf, Q. Nosheen, A. Ghani, A. Qadir and S. Zakia, 2012. Incidence of six viruses in potato growing areas of Pakistan. Pakistan journal of phytopath, 24(1): 44-47.

Abbas, M. F., S. Hameed and C. A. Rauf, 2014. Presence of newstrain of potato virus Y in Pakistan. International journal of agriculture and biology, 16(5): 941-945.

Abbas, A. and M. Madadi, 2016. A review paper on potato mop-top virus (PMTV): Occurrence, properties and management. World journal of biology and biotechnology, 1(3): 129-134.

AbdelGadir, A., M. Errebhi, H. Al-Sarhan and M. Ibrahim, 2003. The effect of different levels of additional potassium on yield and industrial qualities of potato (Solanum tuberosum L.) in an irrigated arid region. American Journal of Potato Research, 80(3): 219-222.

Adhikari, B. and K. B. Karki, 2006. Effect of potassium on potato tuber production in acid soils of Malepatan, Pokhara. Nepal Agriculture Research Journal, 7: 42-48.

Aggarwal, R., J. Gupta, S. Saxena and K. Muthana, 1976. Studies on soil physico-chemical and ecological changes under twelve years old five desert tree species of Western Rajasthan. Indian Forester, 102(12): 863-872.

Akhtar, M. and M. Khan, 2002. Nutrient mining-a cause of soil

degradation. Farming Outlook, 2: 22-24.

Al-Moshileh, A. and M. Errebi, 2004. Effect of various potassium sulfate rates on growth, yield and quality of potato grown under sandy soil and arid conditions. In: International Potash Institute. Regional workshop on potassium and fertigation development in West Asia and North Africa, Rabat, Morocco. pp: 24-28.

Ali, M. and S. Tsou, 2000. The integrated research approach of the asian vegetable research and development center (avrdc) to enhance micronutrient availability. Food Nutrition Bulletin,

(4): 472-481.

Arab, H. R., H. Afshari, D. M. Sam, G. Laei and S. R. Toudar, 2011. The effect of planting date, depth and density on yield and yield components of potato in Shahrood (Iran). Journal of Research in Agricultural Science 7(2): 141-149.

Banu, S. S., T. M. Thiyagarajan and P. Malarvizhi, 2007. Effect of graded levels of fertilizers on quality aspects of potato. Potato Journal, 34(3-4).

Chapagain, B., Z. Wiesman, M. Zaccai, P. Imas and H. Magen, 2003. Potassium chloride enhances fruit appearance and improves quality of fertigated greenhouse tomato as compared to potassium nitrate. Journal of Plant Nutrition, 26(3): 643-658.

Chapagain, B. P. and Z. Wiesman, 2004. Effect of potassium magnesium chloride in the fertigation solution as partial source of potassium on growth, yield and quality of greenhouse tomato. Scientia Horticulturae, 99(3-4): 279-288.

El-Gamal, A., 1985. Effect of potassium level on potato yield and quality. Journal of Agriculture Sciences Mansoura University, 10(4): 1443-1476.

El-Latif, K. A., E. Osman, R. Abdullah and N. A. El Kader, 2011. Response of potato plants to potassium fertilizer rates and oil moisture deficit. Advances Applied Sciences Research, 2(2):


Grzebisz, W., A. Gransee, W. Szczepaniak and J. Diatta, 2013. The effects of potassium fertilization on water‐use efficiency in crop plants. Journal of Plant Nutrition Soil Science, 176(3): 355-374.

Hailu, G., D. Nigussie, M. Ali and B. Derbew, 2017. Nitrogen and phosphorus use efficiency in improved potato (Solanum tuberosum L.) cultivars in southern ethiopia. American Journal of Potato Research, 94(6): 617-631.

Humadi, F. J. Z., 1986. Influence of potassium rates on growth and yield of potato (Solanum tuberosum)(in Iraq).

Jamro, M. R., S. Tunio, U. Buriro and Q. Chachar, 2015. Effect of planting dates on growth and yield of true potato seed (tps) in nursery raising approach. ournal of Basic Applied Sciences, 11: 318-322.

Khan, I., M. Zaman, M. Khan, M. Iqbal, M. J. J. o. s. s. Babar and p. nutrition, 2014. How to improve yield and quality of potatoes: Effects of two rates of urea n, urease inhibitor and cytozyme nutritional program. 14(2): 268-276.

Khan, M. Z., M. E. Akhtar, M. N. Safdar, M. M. Mahmood, S. Ahmad and N. Ahmed, 2010. Effect of source and level of potash on yield and quality of potato tubers. Pakistan Journal of Botany, 42(5): 3137-3145.

Koehler, F., C. Moodie and B. McNeal, 1984. Laboratory manual for soil fertility, washington state uni. Pullman Washington.

Krishnappa, K., 1993. Effect of planting time on the yield and yield attributes of potato in eastern karnataka. Field Crop Absttract, 46(11).

Manolov, I., N. Neshev, V. Chalova and N. Yordanova, 2015. Influence of potassium fertilizer source on potato yield and quality. In: Proceedings. 50th Croatian and 10th International Symposium on Agriculture. Opatija. Croatia. pp: 363-367.

Misskire, Y., T. Mamo, A. M. Taddesse and U. Yermiyahu, 2019. The effect of potassium on yield, nutrient uptake and efficiency of teff (Eragrostis tef zucc. Trotter) on vertisols of North Western Ethiopian Highlands. Journal of Plant Nutrition, 42(4): 307-322.

Nelson, D. and L. E. Sommers, 1982. Total carbon, organic carbon, and organic matter 1. Methods of soil analysis. Part 2. Chemical Microbiological Properties(methodsofsoilan2): 539-579.

Nilson, M. A. and K. Abrahamson, 2018. Potato seed planting apparatus and method of planting potato seed using the apparatus. Google Patents.

Page, A., R. Miller and D. Keeney, 1982. Methods of soil analysis, part 2. Chemical Microbiological Properties, 2.

Pregno, L. and J. Armour, 1992. Boron deficiency and toxicity in potato cv. Sebago on an oxisol of the atherton tablelands, north queensland. Australian Journal of Experimental Agriculture, 32(2): 251-253.

Putra, F. P., S. Saparso, S. Rohadi and R. Ismoyojati, 2019. The response of potato plants (Solanum tuberosum L.) to various thicknesses of cocopeat media and sundstrom nutrition time. Jurnal Ilmiah Pertanian, 15(2): 57-66.

Qamar, M. I., S. Batool, W. Aurangzeb, R. Zainab and S. Menghwar, 2016. Different techniques for diagnostic of potato viruses: A brief review. World journal of biology and biotechnology, 1(3): 123-128.

Singh, V., B. Dwivedi, R. Mishra, A. Shukla, J. Timsina, P. Upadhyay, K. Shekhawat, K. Majumdar and A. Panwar, 2019. Yields, soil health and farm profits under a rice-wheat system: Long-term effect of fertilizers and organic manures applied alone and in combination. Agronomy, 9(1): 1-6.

Urooj, M., U. Arif and A. Intikhab, 2016. A brief review for identification and detection of potato viruses. World journal of biology and biotechnology, 1(1): 33-37.

Yenagi, B., S. Meli and S. Angadi, 2010. Effect of row spacing, planting date and nitrogen level on tuber grade, yield and economics of potato. Karnataka Journal of Agricultural Sciences, 17(2).


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