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vol. 7, nr. 3 (2006)
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Effect of differentiated phosphorus fertilization doses on the yield of radish and its content of nitrates
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Wojciech Tyksiński, Elżbieta Kozik, Maciej Bosiacki
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Department of Horticultural Plant Fertilization, Agricultural University, ul. Zgorzelecka 4, 60-198 Poznań |
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vol. 7 (2006), nr. 3,
pp. 733-740
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abstract:
In spring 2002 and 2003, a pot experiment in a greenhouse was carried out on radish (grown in a mixture of mineral soil and raised peat, 1:1). The aim was to investigate the effect of differentiated phosphorus doses, plant cultivar and pH level on the content of nitrates in the radish colosities. A significant increase of nitrates content was found under the influence of the highest dose of phosphorus, i.e. 300 mg Pdm-3. Doses of 75 and 150 mg Pdm-3 increased the yield of radish as compared with the control. ‘Carmen’ cultivar accumulated almost three times less nitrates than ‘Saxa’ cultivar. An increase of substrate reaction by 0.2-0.7 pH units (2nd level of pH) increased the content of nitrates in radish.
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keywords:
radish, nitrates, cultivars, phosphorus doses
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original in:
Polish
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