Agroecological assessment of the effectiveness of irrigation  of tomato using electrolyzed water

Aim. The purpose of the research is to quantify the agroecological response of  plants and the bio‐productivity of crops to irrigation using electrochemical water  treatment technology.   

Material and Methods. The study was carried out using the tomato (Solanum lycoparsicum, hybrid Pink Paradise F1) in a protected ground culture as an example. The  experimental site is located in the dry‐steppe zone of light chestnut soils of the  Lower Volga region (48о56΄46˝N44о51΄45˝E). The magnitude of the electrochemically initiated shift of the redox potential of irrigation water and the options for  combining the use of electrochemically treated water were taken as variable experimental factors.   

Results. It was established that the magnitude of the electrochemically initiated  shift of the redox potential of irrigation water has a predominant effect on the estimated biometric indicators: the coefficient of variation of the indicators for this  factor reached 9.5‐38.0%. The influence of the method of using electrochemically  treated water is estimated at 4.12‐10.24%, but regarding net assimilation the significance of this factor is not statistically proven. The highest estimates of linear  growth – 2.21 m, maximum leaf area – 43.4 thousand m2/ha, accumulated biomass  – 13.39 t/ha, photosynthetic potential – 3617 thousand m2 days/ha and tomato  biological yield – 140.0 t/ha, obtained by the combined use of a catholyte for vegetation and fertilizer irrigation with an electrochemically initiated shift of the redox  potential (‐500) mV.   

Conclusion. The studies have proved the statistical significance of the biometric  response of tomato plants to the use of water with electrochemically altered redox  potential for vegetation and fertilizer irrigation.   

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