Subtropical and ornamental horticulture
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WATER REGIME OF HUMID SUBTROPICS OF RUSSIAAND IRRIGATION OF ACTINIDIA DELICIOSA (ACTINIDIA DELICIOSA (A. CHEV.) LIANG. ЕT. FERG.)

Year:
2018
The authors:
Besedina T. D., Tutberidze T. V., Toria G. B.
DOI:
10.31360/2225-3068-2018-66-135-144
Page numbers:
135 - 144
Keywords:
Actinidia deliciosa, humid subtropics, drip irrigation, water regime, yield.

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Length of vegetation of Actinidia deliciosa in growth conditions of humid subtropics of Russia was observed from March to the end of November. Mathematical modeling was established: during the "flowering" phase, its yield is limited by precipitation and humidity; during the period of fruit development, irrigation is necessary, due to the specificity of water regime in the region. In the cold period (November – March), a pouring rains is observed here, in the warm period (April – October), especially in July-September, drought intervals of the summer season occur of different duration from 10 to 40 days, as a result soil moisture deficiency occurs. The study of drip irrigation under different irrigation regimes after reaching pre-threshold before normal humidity (90, 80, 70 %) revealed the greatest efficiency at watering 80 % of normal humidity, which increased yield of Actinidia deliciosa cultivar ‘Hayward’ by 59 %.
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ISSN 2225-3068

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