Received: February 1st, 2022 ; Accepted: February 19th, 2023 ; Published: February 20th, 2023 ; Correspondence: [email protected] aim of the research is to identify the extent of production removal of the main
nutrient elements in the irrigated grain-growing lands of Armenia, to optimize the norms of
organo-mineral fertilizers, to stabilize the yield of plants and prevent dehumification. The field
experiments were carried out in the conditions of the Ararat Valley on winter wheat and barley
in 2020–2022. The production removal of nitrogen by 5–7 t ha-1 grain of winter wheat and
9.6–13.3 t ha-1 straw varies between 155–247, P2O5: 60–88, K2O: 134–197 kg ha-1 , and the
amounts removed by barley grain 4.5–6.5 t ha-1 and straw 6.9–9.7t ha-1 were 122–194, 49–77 and
106–159 kg ha-1
, respectively. The amounts of nitrogen and potassium production removal from
plant crops are about 2 times higher than the doses of applied fertilizers, and the amount of
phosphorus is almost balanced by these doses
