Purpose. to development and validate the technology for cultivating carrots and red beet in open ground using drip and sprinkler irrigation to ensure high productivity of environmentally friendly food products.
Materials and methods. The studies were conducted in the dry steppe zone of the Volga region (Saratov region, Engels district) on experimental plots of vegetable growing farms. The amount and rate of irrigation were determined taking into account the predetermined lower moisture threshold, as well as the meteorological conditions of the growing season of vegetable crops. Irrigation regimes (amount and rate) were established on the basis of monitoring the moisture content of the active soil layer (0.6 m) in triplicate using the thermostat-weight method. For carrots, the moisture threshold of the active soil layer was maintained at the level of 80-70-70 % of the minimum permissible moisture content, and for beets – 70-70-70 % of the minimum permissible moisture content. The biological yield was determined per 1 m² in five replicates. The microclimatic parameters of agrocenoses were determined using an Assmann aspiration psychrometer (type MB-4M) every day of the growing season.
Results. In a moderately dry period (HTC = 1.2), the maximum biological yield was achieved with drip irrigation in combination with fertigation with microfertilizers and refreshing sprinkler irrigation: carrots – 63.5 t/ha, red beet – 38.2 t/ha.
Conclusions. It has been proven that a combination of drip irrigation with refreshing sprinkler irrigation at small rates (100 m³/ha) is the most effective technique in arid climate conditions. Moreover, the fractional application of micronutrients through a fertigation system with drip irrigation contributes to increased productivity of vegetable crop agrocenoses.
vegetable crops, red beet, carrot, drip irrigation, sprinkler irrigation, agro-efficiency, biological yield
Kizhaeva V. E., Peshkova V. O. Resource-saving management of carrot and red beet agrocenoses productivity with the integration of drip and mist irrigation systems in the Volga region. Ways of Increasing the Efficiency of Irrigated Agriculture. 2026;98(1):338–353. (In Russ.).
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