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Quality constituents of carrots Daucus carota L. as influenced by nitrogen and potassium fertilization

, : Quality constituents of carrots Daucus carota L. as influenced by nitrogen and potassium fertilization. Acta Horticulturae (29): 295-305

In trials with pot-grown carrots rising N levels increased the root carotene content, but no such effect from K was noted. Generally, the carotene content was more affected by the stage of plant maturity than by fertilization. The percentage of reducing sugars decreased with the addition of K and that of non-reducing sugars increased; total sugars decreased slightly. N had little effect on total sugars but increased reducing sugars and decreased non-reducing ones.

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Related references

Habben J., 1973: Quality constituents of carrots daucus carota as influenced by nitrogen and potassium fertilization. Acta Horticulturae (Wageningen) 29: 295-305

Habben, J., 1973: The effect of nitrogen and potassium fertilization on yield and quality of carrots (Daucus carota L.). In pot experiments, application of N as NH4NO3 increased top growth, nitrate accumulation, and carotene content, and decreased the crude fibre content. K as K2SO4 at low rates limited root growth. At higher rates, K decreased the percent of reduci...

Venter F., 1979: Nitrate contents in carrots daucus carota as influenced by fertilization. Acta Horticulturae (Wageningen) (93): 163-172

Krarup H.A.; Grandon B.M.; Berner K.C., 1984: Effects of a factorial fertilization on yields contents and calculated extraction of nitrogen phosphorus and potassium in carrots daucus carota under valdivia chile conditions. Based on a factorial fertilizing experiment, yields, contents and extraction of N, P and K in roots and leaves were determined in a 'Chantenay' carrot crop, under the conditions of Valdivia. Root yields were better with the intermediate...

Matev, J., 1969: Nitrogen, phosphorus and potassium uptake by carrots, Daucus carota.). Uptake of N, P and K occurred throughout the growth period. When the rates were increased from N60P60K90 to N12oP120K180 (kg./ha.) the crop reached commercial maturity earlier.

Sandhu, K.S.; Joshi, A.K.; Bajaj, K.L., 1988: Effects of nitrogen fertilizer and weed control on nutritive quality of carrots (Daucus carota L.). The nutritive quality of carrots, obtained from different herbicide-treated plots and under different levels of nitrogen application ranging from zero to 80 kg nitrogen/ha, was compared. There were significant differences in carotene content, T.S....

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Rosenfeld, H.J., 2003: Sensory, chemical and morphological changes in carrots (Daucus carota L.) as influenced by climatic factors. An experiment was conducted in Norway, to determine the effect of climate, mainly temperature, on the sensory attributes, chemical composition and morphological parameters of carrots, and to link the results to the hypothesis that the sensory qual...

Stiebeling, B.; Neumann, K.H., 1987: Identification and concentration of endogenous cytokinins in carrots daucus carota l. as influenced by development and a circadian rhythm. The major cytokinins in carrot (Daucus carota L.) were identified as 2-isopentenyladenine and 2-isopentenyladenosine. Both cytokinins occurred in the shoot, whereas only 2-isopentenyladenine could be detected in the root. The concentration of thes...

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