Shtanko A.S. - Water Consumption Planning and Implementation for Irrigation Systems Under the Conditions of Water Scarcity

Written by Erkin Turdibaev

Thursday, 23 February 2017

The aim of research was to develop a method of adjusting the delivery value for irrigation of crops under the conditions of water scarcity. To achieve this goal the principle of water resources distribution between competing crops at decreasing the overall water supply limit to outlets in proportion to their share in the cost of the productivity from irrigation on the given water outlet was used. As a result of research a method of adjusting delivery value for crops irrigation at water supply deficit has been developed, providing the reduction of water supply limits to water users in the way that economic losses from agricultural crops underwatering were minimal. Analysis of the theoretical verification of the proposed method shows that with the decrease of total water delivery to the area, the delivery value for irrigation of tomatoes as the most sensitive to irrigation and the most profitable crop is cut the least. By reducing the total delivery value by 30 % the amount of water supply for irrigation tomatoes (estimates) decreases by 0.8 % by calculation. The delivery value for irrigation of cabbage (1.3 %), potatoes (2.0 %), onion (4.7 %), corn (9.7 %) and corn silage (10.0 %) are slightly reduced. The delivery value for irrigation spring barley (86.7 %) as the least sensitive to irrigation in this area is cut the most. Results of the theoretical test show the feasibility and efficiency of the proposed method of delivery value adjustments for irrigation with water scarcity. Download (in Russian) (pdf, 563 kB)  Source: http://www.rosniipm-sm.ru/

 

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