Keywords
Abstract
Water of varying electrical conductivity (EC) was passed through the AQUA4D device, a system that solves the problem of salinity using electromagnetic waves, and this water was subsequently used to water grape plants. The salt density, and electrical conductivity of the water used during the vegetation season was increased every 10 days, and gradually raised from 2.4 to 14.6 μS/cm. Sodium chloride (NaCl) was used to obtain the required electrical conductivity values. For observations, 60 pots with grape bushes planted in them were selected, 48 of which were watered with water that passed through the AQUA4D system, and 12 served as a control, i.e. were watered with water that did not pass through the above-mentioned device. For all options, watering lasted 8-10 days, with a consumption rate of 2.0-2.5 liters of water per each pot. It was found that by the end of experiment, the average length of plants irrigated with water passed through AQUA4D was 92.2 cm, and in the control - 54.9 cm, with an average daily growth of 1.31 and 0.80 cm, respectively. During the first 20 days, there were no noticeable differences between the experimental variants. However, aſter this period, the differences began to clearly appear. Thus, observations carried out on July 30 (in three weeks) showed the occurrence of necrosis in control plants, while in those watered with water passed through AQUA4D, drying was not observed. Aſter 10 days, the difference became even more noticeable. The leaves in the control dried out even more. The condition of leaves watered using AQUA4D remained stable for the period from August 20 to September 10 and was rated 7 points (drying of several leaves). During the same period, the leaves of control plants dried out significantly more; their condition was rated 3 points. By the end of observations, all leaves in the control dried out and fell off.