To study the effect of adding different levels of olive mill waste water mixture with cow manure at different degrees of anaerobic fermentation on some physical properties of soil and on Potato plant productivity. bioscnc [Internet]. 2021 Nov. 8 [cited 2026 May 10];43(5). Available from: https://journal.latakia-univ.edu.sy/index.php/bioscnc/article/view/11054