APPLICATION OF DIFFERENT UREA CONCENTRATIONS IN PROTECTION OF GREENHOUSES AND POLYTUNNELS FROM SNOW. Works of the Faculty of Agriculture and Food Sciences University of Sarajevo, Sarajevo, Bosnia and Herzegovina, v. 71, n. 2, p. 73–83, 2026. DOI: 10.67407/rppf.2021.2.73. Disponível em: https://radovi.ppf.unsa.ba/index.php/rppf/article/view/114. Acesso em: 24 sep. 2026.