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Author: Akhmedov A. J. Dzhamaletdinova E. E.

FEATURES OF WATER-SAVING TECHNOLOGY OF VEGETABLE CROPS IRRIGATION IN THE SOUTH OF RUSSIA

Topics: 06.01.02 Land Reclamation, Recultivation, and Land Protection

Abstract:

The aim of the research is to increase the water resources use efficiency to obtain the planned yield of carrots (Major F1 hybrid) and table beets (Bordeaux varieties) at the level of 60, 70 and 80 t per ha under the conditions of the Volga-Don interfluve.
Material and Methods. The studies were conducted on light chestnut heavy loamy slowly permeable soils of Gorodishchensky district of Volgograd region during 2015–2017. The experiments were carried out according to the generally accepted recommendations by B. A. Dospekhov, G. F. Nikitenko, V. N. Pleshakov. Irrigation was carried out by drip irrigation systems with the maintenance of the predetermined soil moisture thresholds and the designed wetting depth.
Results: it was found that maintaining a constant pre-irrigation soil moisture threshold of 80 % minimum moisture-holding capacity and increasing the doses of mineral fertilizers to N₂₁₀P₁₀₀K₂₆₀ made it possible to obtain the highest carrot yield of 81.6 t per ha in the field experiment. This happened simultaneously with the reduction of water consumption coefficients to the minimum values of 72.2 cubic meters per ton, and irrigation water costs – up to 55.2 cubic meters per ton. In variants with a differentiated moisture depth of 0.3–0.5 m at maintaining an optimal irrigation regime of 80 % minimum moisture-holding capacity and increasing fertilizer doses to N₂₃₀P₁₈₀K₁₀₀, beet yield increased to 84.1 t per ha. This caused a maximum reduction of transpiration ratio to 59.8 cubic meters per ton and irrigation water costs to 45.1 cubic meters per ton.
Conclusion: the research results proving that water-saving technologies used for light-chestnut soils in the south of Russia, combining the developed irrigation regimes simultaneously with the predicted doses of mineral fertilizers which make it possible to obtain the planned yield of beetroot and carrot with drip irrigation at the level of 60–80 t per ha are presented.
Key words: drip irrigation; irrigation regime; beetroot; carrot; productivity; transpiration ratio; irrigation water costs; total water consumption; soil moisture.

DOI: 10.31774/2222-1816-2019-4-17-30 

For citation:

Akhmedov, A. D. Features of water-saving technology of vegetable crops irrigation in the south of Russia / A. D. Akhmedov, E. E. Dzhama-letdinova // Scientific Jour-nal of Russian Scientific Re-search Institute of Land Im-provement Problems [Elec-tronic resource]. – 2019. – 4(36). – P. 17–30. – Mode of access: http:www.rosniipm-sm.ru/en/archive?n=619&id=621. – DOI: 10.31774/2222-1816-2019-4-17-30.

References

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