Influence of fertilization on selected qualitative properties of Bila potato tubers
2007
Wszelaczynska, E. | Janowiak, J. | Spychaj-Fabisiak, E. | Pinska, M.,Uniwersytet Technologiczno-Przyrodniczy, Bydgoszcz (Poland). Katedra Przechowalnictwa i Przetworstwa Produktow Roslinnych
The study was conducted on the basis of a multiannual static field experiment established in 1979. It was conducted in the 3-year simplified rotation system: potato-winter rye-winter rye. The study refers to an early, edible variety of Bila potato growing in the first year of 10th rotation (2006). Experimental factors were the following: organic fertilization (without manure and with manure 30 t/ha), and nitrate fertilization - four doses (0, 60, 120, 180 kg/ha). The aim of this study was to define the influence of organic and mineral fertilization on selected qualitative properties of potato tubers. The results obtained from the study show a positive effect of manure and nitrate fertilization on dry matter and starch content and a negative effect on sugar content. Increasing nitrogen doses lowered a content of vitamin C in potato tubers. However, potatoes growing on manure had a higher content of this ingredient
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