Quality of cucumbers as affected by drip irrigation and fertigation
Stanisław Kaniszewski, Krystyna Elkner
Research Institute of Vegetable Crops
Konstytucji 3 Maja, 96-100 Skierniewice, Poland
The objective of this study was to compare drip irrigation and fertigation
of water soluble nitrogen with traditional broadcast nitrogen application
and their effect on yield and quality of fresh and processed cucumbers.
Total and marketable yields of cucumbers were increased by both drip
irrigation and N fertilisation. Yield was maximised by 300 kg ha-1
of nitrogen (50 kg ha-1 broadcast and 250
kg ha-1 in surface fertigation) in both
years of the experiment. However, significant increase in the yield was up
to the rate of 200 kg ha-1 (50 kg ha-1
broadcast and 150 kg ha-1 with surface or
subsurface fertigation). No greater differences in yield between broadcast
and liquid nitrogen application were found. Drip irrigation and N
fertilisation affected the quality of fresh and processed cucumbers. The
highest percentage of fresh and processed cucumber fruits with empty
cavities were found with the treatment of broadcast nitrogen application.
Increased nitrogen doses also increase fruit percentage with empty
cavities while drip irrigation reduced the percentage of such fruits. The
highest content of sugars and vitamin C and lowest content of nitrates
were found in fruits from treatment with 200 kg ha-1
of N (50 kg ha-1 preplant and 150 kg ha-1
in fertigation). Increase in nitrogen doses had a significant effect on
the sensory traits of fermented cucumber fruits. The best quality indices
had fermented fruits from treatments 100 and 200 kg ha-1
of N with the first part of 50 kg ha-1
applied preplant and the second as a fertigation. Fruits from these
treatments had olive-green colour, and good consistency and flavour.
Kaniszewski S., Elkner K., 2002. Quality of cucumbers as affected by drip irrigation
and fertigation. Folia Horticulturae 14/1: 143-154.