|Authors: ||S. Zeipiņa, I. Alsiņa, L. Lepse|
|Keywords: ||Daucus carota L., carotene, drip irrigation, sprinkler irrigation|
Carrots are one of the most popular field vegetables in Latvia, widely consumed in the daily diet.
Obtaining high yield and quality carrots are important factors for growers.
Irrigation in critical periods is one of the main conditions ensuring high quality yield of carrots.
Finding the most effective irrigation system could increase effectiveness of growing.
Carrot roots of two varieties were tested during 2010 and 2011 in Pūre Horticultural Research Centre – ‘Nevis’ F1 and ‘Amsterdam Bak 2 - Sweatheart’. Two irrigation regimes were compared to a non-irrigated control – drip irrigation and sprinkler irrigation.
The results of the investigation indicate that root quality and yield are significantly influenced by moisture and temperature conditions in vegetation period in general.
Carotene content in 2010 ranged between 5.48-7.48 mg per 100 g fresh matter, but in 2011 it ranged between 9.85-12.19 mg per 100 g fresh matter.
In most cases there was not stated a big difference in carotene content between control and sprinkler irrigation variant, both these variants showed higher carotene content than drip irrigation.
Also yields were significantly different in both years.
On average it was 37.8 t/ha in 2010 and 57.8 t/ha in 2011. In both years the highest yields were obtained from irrigation variant with sprinklers for both varieties.
It leads to the general conclusion that sprinkler irrigation is more effective in carrot watering than drip irrigation.
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