Potato cultivars have different strategies for dealing with potassium (K) deficiency in soil, and their response to different forms and rates of K fertilisation may vary because of differences in soil K availability. This study was performed to evaluate the effect of K fertilisation rates (0, 30, 60, 90, 120 and 150 kg K/ha) on tuber yield and quality (dry matter, starch, sugar and ascorbic acid content, taste) of two potato cultivars (Roco and Rosara) grown in the microplot field experiment on Luvisol in the forest-steppe zone in southern West Siberia, Russia (NL 54.422106, EL 83.160257). The tuber yield of both potato cultivars increased with increase in K application rate up to 2.1 and 2.9 kg/m2 for Roco and Rosara, respectively. Sugar content, averaging 3.5%, was mostly determined by cultivar; however, in both cultivars it tended to decrease with increasing K application rate. The application of K fertiliser in the form of sulphate as compared to chloride increased dry matter content from 22.4 to 23.8% and ascorbic acid content from 13.2 to 14.6 mg/100 g fresh mass. Starch content of potato tubers averaged 59.7 ± 4.8% over all K fertilisation variants, with cultivar responses being different. Potassium application rate did not affect Roco tubers’ taste, while improving Rosara tubers’ taste under moderate application rates. The results underscore the importance to adjust fertiliser recommendations concerning potassium application rates and source on the basis of biological requirements and intended utilization of individual potato cultivars
ANDRE, C.M. - LEGAY, S. - IAMMARINO, C. et al. 2014. The potato in the human diet: a complex matrix with potential health benefits. In Potato Research, vol. 57, no. 3‒4, pp. 201‒214. DOI:10.1007/s11540-015-9287-3
AVERSANO, R. - CONTALDI, F. - ADELFI, M.G. - D’AMELIA, V. - DIRETTO, G. - DE TOMMASI, N. - VACCARO, C. - VASSALLO, A. - CARPUTO, D. 2017. Comparative metabolite and genome analysis of tuber-bearing potato species. In Phytochemistry, vol. 137, pp. 42‒51. DOI:10.1016/j.phytochem.2017.02.011
BARCZAK, B. - NOWAK, K. - KNAPOWSKI, T. 2013. Potato yield is affected by sulphur form and rate. In Agrochimica, vol. 57, no. 4, pp. 361‒369. WOS:000337006600005. http://apps.webofknowledge.com/full_record.do?product=WOS&searchmode=GeneralSearch&qid=3&SID=C2suzK4c3ZN7i4xOiI9&page=1&doc=4
CHETTRI, M. - MONDAL, S.S. - ROY, B. 2002. Influence of potassium and sulphur with or without FYM on growth, productivity and disease index of potato in soils of West Bengal. In Journal of the Indian Potato Association, vol. 29, pp. 61-65. http://agris.fao.org/agris-search/search.do?recordID=IN2005000590
IPCC, 2013. Climate Change 2013: The Physical Science Basis. Working Group I Contribution to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change: Summary for Policy-makers. Cambridge : Cambridge University Press, 28 p.
DAVENPORT, J.R. - BENTLEY, E.M. 2001. Does potassium fertilizer form, source and time of application influence potato yield and quality in the Columbia Basin? In American Journal of Potato Research, vol. 78, no. 4, pp. 311-318. DOI: 10.1007/BF02875696
EL-SAYED, S.F. - HASSAN, H.A. - EL-MOGY, M.M. 2015. Impact of bio- and organic fertilizers on potato yield, quality and tuber weight loss after harvest. In Potato Research, vol. 58, no. 1, pp. 67-81. DOI:10.1007/s11540-014-9272-2
EWAIS, M.A. - SAYED, D.A. - KHALIL, A.A. 2010. Effect of application methods of potassium and some micronutrients on yield and quality of potato. In Journal of Soil Sciences and Agricultural Engineering, vol. 1, no. 3, pp. 211-223. http://agris.fao.org/agris-search/search.do?recordID=EG2011000716
FAO 2014. FAO, FAOSTAT. Agriculture. Rome. Available at http://faostat.fao.org/. (accessed November 20, 2017)
FERREIRA, S. - HEIDER, R. - REZENDE, F. - PAULO, C. 2016. Potassium fertilization and its residual effect on productivity and quality of potato tubers. In Pesquisa Agropecuaria Brasileira, vol. 51, no. 7, pp. 842‒848. DOI: 10.1590/ S0100-204X2016000700007
HAASE, N.U. 2008. Healthy aspects of potatoes as part of the human diet. In Potato Research, vol. 51, no. 3‒4, pp. 239. DOI:10.1007/s11540-008-9111-4
HAN, J.S. - KOZUKUE, N. - YOUNG, K.S. - LEE, K.R. - FRIEDMAN, M. 2004. Distribution of ascorbic acid in potato tubers and in home-processed and commercial potato foods. In Journal of Agricultural and Food Chemistry, vol. 52, no. 21, pp. 6516‒6521. DOI: 10.1021/jf0493270
HARDIGAN, M.A. - LAIMBEER, F.P.E. - NEWTON, L. - CRISOVAN, E. - HAMILTON, J.P. - VAILLANCOURT, B. - WIEGERT-RININGER, K. - WOOD, J.C. - DOUCHES, D.S. - FARRÉ, E.M. - VEILLEUX, R.E. - BUELL, C.R. 2017. Genome diversity of tuber-bearing Solanum uncovers complex evolutionary history and targets of domestication in the cultivated potato. In Proceedings of the National Academy of Sciences of the USA, vol. 114, no. 46, pp. E9999‒E10008. DOI:10.1073/pnas.1714380114
HENDERSHOT, W.H. - LALANDE, H. - DUQUETTE, M. 2008. Soil reaction and exchangeable acidity. In CARTER, M.R. - GREGORICH, E.G. (Eds.). Soil Sampling and methods of Analysis. 2nd edition. Boca Raton : CRC Press. Ch.18. ISBN-13: 978-0-8593-3586-0
IUSS Working Group WRB. 2014. WRB, World Reference Base for Soil Resources 2014. International soil classification system for naming soils and creating legends for soil maps. World Soil Resources Reports No. 106. Roma : FAO, pp. 203.
KING, J.C. - SLAVIN, J.L. 2013. White potatoes, human health, and dietary guidance. In Advances in Nutrition, vol. 4, pp. 393S‒401S. DOI:10.3945/an.112.003525
KROETSCH, D. - WANG, C. 2008. Particle size distribution. In CARTER, M.R. ‒ GREGORICH, E.G. (Eds.). Soil Sampling and methods of Analysis. 2nd edition. Boca Raton : CRC Press. Ch. 55. ISBN-13: 978-0-8593-3586-0
КОNOVA, A.M. - GAVRILOVA, A.U. - SAMOILOV, L.N. 2016. Yield and quality of potato depending on the prolonged use of agrochemicals on sod-podzolic light loamy soils of the Smolensk region. In International Research Journal, no. 11‒5(53), pp. 30-33 (in Russian). DOI: 10.18454/IRJ.2016.53.071
KUMAR, P. - PANDEY, S.K. - SINGH, S.V. - RAWAL, S. - KUMAR, D. 2005. Optimizing potassium requirements of Chipsona cultivars for West-Central plains. In Potato Journal, vol. 32, no. 3‒4, pp. 155-156. https://wwwipipotash.org/ru/abstracts/detail.php?d=39
KUMAR, P. - PANDEY, S.K. - SINGH, B.P. - SINGH, S.V. KUMAR, D. 2007. Influence of source and time of potassium application on potato growth, yield, economics and crisp quality. In Potato Research, vol. 50, no. 1, pp. 1‒13. DOI: 10.1007/s11540-007-9023-8
LEBEDEVA, T.N. - NIKITISHEN, V.I. 2014. Mineral and fertilization of potato plants on gray forest soil. In Agrochemistry, no. 8, pp. 26‒39 (in Russian).
MIKHAILOVA, L.A. - ALYOSHIN, M.A. - ALYOSHINA, D.V. 2013. Influence of mineral nutrition conditions on potato productivity and quality at growing on sod-podzolic heavy loam-clay soil. In Perm Agrarian Journal, no. 1, pp. 9‒14 (in Russian).
NEENAN, M. - MULQUEEN, J. - FRANKLIN, A.A. 1967. Influence of soil type on certain quality characteristics of potatoes. In European Potato Journal, vol. 10, no. 3, pp. 167‒179. DOI: 10.1007/BF02364426
O’HALLORAN, I.P. - CADE-MENUM, B.J. 2008. Total and organic phosphorus. In CARTER, M.R. ‒ GREGORICH, E.G. (Eds.) Soil Sampling and methods of Analysis. 2nd edition. Boca Raton : CRC Press. Ch. 24. ISBN-13: 978- 0-8593-3586-0
RHUE, R.D. - HENSEL, D.R ‒ KIDDER, G. 1986. Effect of K fertilization on yield and leaf nutrient concentrations of potatoes grown on a sandy soil. In American Potato Journal, vol. 63, no. 12, pp. 665-681. DOI: 10.1007/ BF02852981
SHARMA, D.K. - KUSHWAH, S.S. - NEMA, P.K. - RATHORE, S.S. 2011. Effect of Sulphur on yield and quality of potato (Solanum tuberosum L.). In International Journal of Agricultural Research, vol. 6, no. 2, pp. 143‒148. DOI: 10.3923/ijar.2011.143.148
SINGH, D.P. - SEEMA, A.J. - SINGH, S.P. - SINGH, V. 2016. Effect of sulphur on yield, uptake of nutrients and economics of garlic (Allium sativum), onion (Allium cepa) and potato (Solanum tuberosum) in alluvial soil. In Indian Journal of Agricultural Sciences, vol. 86, no. 5, pp. 661‒665. http://www.scopus.com/inward/record.url?scp=84968880458&partnerID=8YFLogxK
STANLEY, R. - JEWELL, S. 1989. The influence of source and rate of potassium fertilizer on the quality of potatoes for french fry production. In Potato Research, vol. 32, no. 4, pp. 439‒446. DOI: 10.1007/BF02358499
THYBO, A.K. - CHRISTIANSEN, J. - KAACK, K. - PETERSEN, M.A. 2006. Effect of cultivars, wound healing and storage on sensory quality and chemical components in pre-peeled potatoes. In LWT - Food Science and Technology, vol. 39, no. 2, pp. 166‒176. DOI:10.1016/j.lwt.2004.11.010
TOOLANGI, T.K. 1995. Potatoes: factors affecting dry matter. In Agriculture Notes, Victoria USA : Department of Primary Industries, pp. 1-3.
VAN LOON, C.D. - VAN DEN BERG, W. 2003. The effect of chloride fertilization on blackspot susceptibility and other quality characteristics and on yield of potato. In Potato Research, vol. 46, no. 3‒4, pp. 147‒154. DOI:10.1007/BF02736084
WANG, Q. - LI, Y. -WANG, Y. 2011. Optimizing the weight loss-on-ignition methodology to quantify organic and carbonate carbon of sediments from diverse sources. In Environment Monitoring and Assessment, vol. 174, no. 1‒4, pp. 241‒257.
WESTERMANN, D.T. - JAMES, D.W. - TINDALL, T.A. - HURST, R.L.1994. Nitrogen and potassium fertilization of potatoes: Sugars and starch. In American Potato Journal, vol. 71, no. 7, pp. 433-453. DOI: 10.1007/BF02849098.