Priciny zhorsenia technologickej kvality cukrovej repy.
1991
Kralovic J.
Interactions of potassium, nitrogen and other factors in saccharose content formation in sugar beet root were examined in four-year experiments. Sugar beet was grown at soil supply of potassium 88.0 - 249.0 mg.kg-1 and phosphorus 28 - 31 mg.kg-1 and was fertilized with three different doses of nitrogen (82.5 - 110.0 - 192.5 kg.ha-1). The higher supply of potassium resulted in the increase of potassium and sodium content in root and at the same time in the decrease of saccharose content. Nitrogen fertilization had a variable effect on saccharose accumulation. The highest saccharose content was recorded at the lowest content of potassium in soil. The primary factor determining the saccharose content in root is the soil supply of potassium.
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