Changes in vitamin C concentartion in potato tubers in relation to growth stages and NPK and Mg fertilization
2000
Ciecko, Z. | Wyszkowski, M. | (University of Warmia and Mazury, Olsztyn (Poland). Chair of Environmental Chemistry)
The effect of increasing NPK rates on the content on vitamin C in potato tubers was studied in three field experiments in the interaction with soil or foliar magnesium application. The highest concentration of vitamin C was noted in young tubers just after flowering and the lowest - at potato harvest. The application of fertilizers decreased the concentration of vitamin C in tubers. A decrease in this paramater was the lowest in the samples taken before flowering and the highest - at full maturity. Small tubers were characterized by the lowest concentration of vitamin C and large ones - by the highest
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