THE IMPACT OF IRRIGATION WITH DNIESTER RIVER WATER ON THE PHYSICO-CHEMICAL PROPERTIES OF LEACHED CHERNOZEM

The article presents the results of the impact of drip irrigation of perennial plantations on the main physico-chemical properties of leached chernozem of the Central Zone of the Republic of Moldova. The water used for irrigation was hydrocarbonate-calcium water from the Dniester River, which by its chemical composition meets the ecological requirements for irrigation water. Under the existing alkaline potential of the used irrigation water, the process of soil decalcification was observed; the ratio of the sum of bivalent to univalent cations in the soil absorbing complex decreased; and the resistance to soda of the leached irrigated chernozem decreased as a result of the neutralisation of hydrolytic acidity.