Summary
Trials were carried out in 1984, 1985 and 1986, on a sandy loam soil with an average content of 133 mg/l available potassium in which the effect of source (KCl, K2SO4) and rate (0, 300, 600, 900 kg K2O/ha) of potassium fertilizer on yield, tuber size, dry matter, reducing sugar, fry test colour and finish fried quality was examined for two cultivars (Pentland Dell, Maris Piper).
The results indicate a strong influence of cultivar on all measured characters, the rate of potassium fertilizer also gave significant changes in quality and yield and there were significant year effects. The effect of source of potassium was not significant.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Anon., 1973. Terrington Experimental Husbandry Farm, 14th Annual Review, Ministry of Agriculture, Fisheries and Food. Terrington, St. Clement, Kings Lynn, Norfolk, UK.
Anon., 1972. United States Department of Agriculture: Colour standard for frozen, french fried potatoes, 3rd Edition. Munsell Colour Co., Baltimore, Maryland, USA.
Billington, R. V., 1986. Potato quality for frozen chips 1984/85 trials. Campden Food Preservation Association, Technical Memorandum No. 418, 17 pp.
Billington, R. V. & R. Stanley, 1987. The influence of variety, field factors and storage period on potato quality for frozen chip production 1981–84; Final Report. Campden Food Preservation Research Association, Technical Memorandum No. 458.
Cowie, G. A., 1943. In: Burton, W. G., The potato. Veenman and Zonen, Wageningen, 1966, p. 91.
Draper, S. P., I. B. Kingston & M. Holden, 1979. Procedures for the comparative assessment of quality in crop varieties.Journal of the National Institute of Agricultural Botany 15: 1–14.
Eastwood, T. & J. Watts, 1966. The effect of potash fertilization upon chipping quality.American Potato Journal 33: 255–257.
Højmark, J. V., 1977. Effect of increasing rates of KCl and K2SO2 on potato yield cooking quality and colour of chips.Tiddskrift for Planteavl 81: 68–80.
Murphy, H. J. & M. J. Goven, 1966. The last decade in 38 years of potash studies for potato fertilizers in Maine.American Potato Journal 43: 122–128.
Orlovius 1983. Zur Kali-Düngung im Kartoffelbau.Der Kartoffelbau 34 (3): 92–94.
Pearon, D., 1976. The chemical analysis of foods, 7th Edition. Churchill Livingstone, Edinburgh.
Wilcox, G. E., 1961. Effect of sulphate and chloride sources and rates of potassium on potato growth and tuber quality.American Potato Journal 38: 215–220.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Stanley, R., Jewell, S. The influence of source and rate of potassium fertilizer on the quality of potatoes for french fry production. Potato Res 32, 439–446 (1989). https://doi.org/10.1007/BF02358499
Issue Date:
DOI: https://doi.org/10.1007/BF02358499