sodininkystė ir daržininkystė 25(4)

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SODININKYSTË IR DARÞININKYSTË. SCIENTIFIC ARTICLES. 2006. 25(4).
INFLUENCE OF IRRIGATION ON
STRAWBERRIES ‘SENGA SENGANA’
L. Taparauskienë
Summary
The investigations were carried out in the Middle Lithuania (Kaunas region)
during 2001–2004. In the territory of investigations the soil was calcareus deeper
gleyic leached soil, IDg4-k, (sod podzolic JP lv
), mechanical composition – light loam
on clay loam. Experimental investigations were focused on ‘Senga Sengana’ strawberry
cultivar. The aim of the work was to determine the influence of irrigation on
strawberry yield and others indicators.
Irrigation effect on yield and other strawberry indicators have been analyzed
and it was determined, that irrigation has a significant influence on the increase of
total yield, fruit size, runner production and leaf assimilation area. The differences
between irrigated and non-irrigated versions are essential and statistically significant
(p – 0.05).
In 2001–2004 average yield of non-irrigated strawberry was 7.8 t/ha and this
one of irrigated – 8 t/ha (the first treatment 70–100% field capacity (FC)) and 10.8
t/ha (the second treatment 80–100% FC). Maintaining soil moisture conditions within
the limits of 80–100% FC the increase of strawberry yield in comparison with
nonirrigated was biggest – 3 t/ha (or 137.7% of non irrigated treatment). Under
natural soil moisture conditions average weight of single berry in the treatment without
irrigation was 7.1 g, and with irrigation (80–100% FC) – 8.2 g. The difference
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