The effect of nitrogen fertilization on growth rate of seedlings and yield of the tomato cultivars New Yorker
and Szkarłatna Kula in field production
Eugeniusz Kołota, Anita Biesiada, Katarzyna Adamczewska-Sowińska
Department of Vegetable Crops
University of Agriculture
Cybulskiego 34, 50-205 Wrocław, Poland
In an experiment conducted in 1985-1988 the effect of nitrogen supply
during propagation on the growth rate of seedlings, nutrient uptake, and
yield of fruit after transplanting into the open field was estimated.
Seedlings of two cultivars (New Yorker and Szkarłatna Kula) were grown in
peat substrate containing 50, 100, 200, 300, and 400 mg of available N per
The results of the study showed that the maximum growth rate was assured by
200 mg N/dm3, this being associated with a level
of 1800-2200 ppm NO3-N and 3.60-3.85% K, depending
on the cultivar, and 4150 ppm P in the leaves
of 7-week-old seedlings. The best quality seedlings obtained in this
treatment resulted in a significantly higher total, marketable as well as early
fruit yield than when 50 and 100 mg N/dm3
of peat substrate were applied. Heavy N application at the rate of 300-400
mg/dm3 during propagation inhibited the
fruit yield of New Yorker and was not effective for Szkarłatna Kula.
Kołota E., Biesiada A., Adamczewska-Sowińska K., 1992. The effect of nitrogen
fertilization on growth rate of seedlings and yield of the tomato
cultivars New Yorker and Szkarłatna Kula in field production. Folia Horticulturae IV/2: 3-13.