A field experiment entitled "Response of summer green gram (Vigna radiata (L.) Wilczek) to irrigation scheduling based on IW/CPE ratio and spacing" was carried out during summer season of 2015 at the Instructional Farm, Department of Agronomy, College of Agriculture, Junagadh Agricultural University, Junagadh. On the basis of one year field experimentation, it seems quite logical to concluded that under clayey soils of South Saurashtra agro-climatic zone for getting higher yield and net realization, green gram (GM 4) should be irrigated ten times at an IW/CPE ratio of 0.8 including two common irrigations i.e. first irrigation immediately after sowing, second at 5-6 days after sowing and remaining five irrigations should be given at an interval of 6-7 days and crop should be sown at 30.0 cm row spacing along with other recommended package of practices.