Effect of drip deficit irrigation and soil mulching on growth of common bean plant, water use efficiency and soil salinity

•The maximum values of bean yield were obtained under FYM compared to RSM.•The greatest values of yield of bean were obtained with the no-deficit treatment (I100%) and MLT9.•The treatment (I100%×FYM×MLT9) proved to be the most suitable for producing high bean crop. Under limited irrigation water, application of (I85%×FYM×MLT9) treatment was found to be favorable to save 15% of the applied irrigation water with no reduction in bean crop.