Olive mill wastewater effects on durum wheat crop attributes and soil microbial activities: A pilot study in Syria

Abstract Olive mill wastewater is one of the environmental problems in semiarid regions. The main goals this study were to investigate impacts different olive levels on durum wheat ( Triticum aestivum var. Douma1) production and soil microbial activities (i.e., bacteria fungi). A pot experiment was conducted during growing seasons 2015/2017 evaluate effect three both growth productivity attributes wheat. Vertisol samples collected from southern Syria. Two months before cultivation, wastewater: T5 (5 L/m 2 ), T10 (10 ) T15 (15 added pots filled with samples. Also, a control (T0) free considered as reference . Results showed significant increase p < 0.05) germination rate (%), plant height (cm), ear length kernels number, weight per (g) grain yield (g/m compared control. However, treatment did not induce terms length, or (in second season). On other hand, had recorded best results two treatments (T5, T15). Similarly, number bacterial fungi cells by increasing concentration. This research provides promising toward using an eco-friendly way under Syrian conditions.