Abstract
The results of experimental investigations of outdoor cucumber yield formation cultivated with drip irrigation are given. It is found that, under conditions of the Lower Volga region, the maximum water-saving effect in the experimental variants is observed with maintaining the preirrigation moisture content at the level of 80% FC in the 0.3-m layer before the start of flowering, 90% FC in the 0.5-m layer during fruiting, as well as 90% FC in the 0.5-m layer during the entire period of cucumber growth with the application of mineral fertilizers in a dose of N165P65K65. The investigations indicate the need for a daily irrigation dose of 30–60 m3/ha for the purpose of maintaining the soil water-air regime and providing the minimum water consumption coefficient regardless of the level of mineral nutrition.
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