Generally, all mulches increased weekly measurements of soil moisture and water use efficiency. These results were agreed with those obtained by Farias-Larios et al., 1994a and Farias-Larios et al., 1994b, Salman et al. (1991a) and Weber (2000). Therefore, the different types of mulch lead to increasing the soil moisture due to decreased of evaporation from soil surface compared to bare soil. So, mulches finding favorable soil environmental conditions and had a positive effect on growth of cucumber plants and contributed to increasing vegetative growth and yield.