TY JOUR TI IRRIGATION MODES TAKING INTO ACCOUNT ORTHOGENESIS OF CROPS A.V. KRAVCHUK, A.G.ULDANOV KW This article provides arguments for preserving the reclamation state of irrigated fields and water resources based on the establishment of effective soil moisture for plant vegetation. The principles of the purpose of differentiated irrigation regimes based on the conditions of soil moisture consumption depending on the specific stages of crop orthogenesis are outlined. It is indicated that a decrease in the upper and lower boundaries of soil moisture during the initial and final periods of crop development KW as well as a change in the value of the humidified layer by development phases leads to a decrease in unproductive losses of irrigation water for surface runoff and infiltration JO Melioration and Water Management AU Kravchuk, A.V. AU Uldanov, A.G. PY 2024 IS 2023 PB ANO Editorial Board Melioration and water management