%0 Journal Article %T REUSE OF HYDROPONIC SOLUTIONS AFTER SPARK DISCHARGE TREATMENT %A Belov, A.A. %A Knyazeva, I.V. %K water, spark discharges, nutrient solutions, reuse, lettuce (Lepidium sativum) %J Vestnik of Kazan State Agrarian University %D 2025 %N 20 %P 4 %I Kazan state agrarian University