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This is to certify that your paper entitled «Effect of urea and nitrapyrine on quantitative and qualitative characteristics of barley cultivars (Hordeum vulgare L.) under different tillage conditions» was indexed with 16 pages, in the CIVILICA citation database, code COI:JR_JISPP-11-50_005, after evaluation and approval of the referees of the "Plant Process and Function Vol 11, Issue 50 , Year 2023.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above journal and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.