Production removal of the main nutrient elements from winter wheat and barley crops in the conditions of the Ararat Valley of Armenia

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

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