INFLUENCE OF NITROGEN FERTILIZATION ON YIELD AND NITRATE NITROGEN CONTENT OF TURNIP-ROOTED PARSLEY

Three cultivars of turnip-rooted parsley (Petroselinum crispum var.tuberosum)- ‘Berlinska’, ‘Fakir’ and ‘Omega’ were grown in field conditions.
Nitrogen was either side dressed only, in rates of 0.100 and 200 kg, or side dressed as above, after preplant application of 100 kg · N ha^-1 thus combined N rates amounted 100, 200 and 300 kg · ha^-1. The studied nitrogen fertilization did not affect the yield of marketable and forked roots.
The tested cultivars had similar marketable yield, whereas forked roots yield of cv. ‘Berlinska’ (0.70 kg · m^-2) was significantly higher as compared that of cvs. ‘Fakir'(0.35 kg · m^-2) and ‘Omega’ (0.33 kg · m^-2). The NO₃-N content of parsley leaves at full growth varied from about 195 to 580 mg · kg^-1 of fresh matter and that of edible roots, from about 154 to 290 mg · kg^-1 of f.m.
The average NO₃-N content in edible roots of cvs. ‘Berlinska’, ‘Fakir’, and ‘Omega’ was 190, 275 and 220 mg · kg^-1 of f.m. respectively.
Split nitrogen application reduced the NO₃– N content in edible roots.

VII International Symposium on Timing Field Production of Vegetables

J. Rumpel, S. Kaniszewski

Petroselinum crispum var.tuberosum, turnip-rooted parsley, yield root forking, nitrate nitrogen content

https://doi.org/10.17660/ActaHortic.1994.371.55