The mean bulk densities for the two experimental years at UAAR and Chakwal fields were 1.
3) indicated that during summer, 2002 at UAAR site, total water contents under mung and mash bean without P were 260 mm and these crops retained 29% more water in soil profile compared with non-legume sorghum.
After summer, 2003 at UAAR site, maximum water grater than300 mm was observed under mash bean without P and on average legumes retained 12% more water than non-legume sorghum.
WUE of grain yield of legumes: Water Use Efficiency of mash bean without P application was 113 and 37% greater than that of mung bean at UAAR site during summer, 2002 and 2003, respectively (Table II).
a Calculated as sowing soil H2O used-harvest soil H2O + in-crop rainfall (UAAR 2002-2003, 383 mm; UAAR 2003-2004, 285.
WUE of N2-fixation of legumes: Water Use Efficiency of N2-fixation of mung bean without P application was 43% higher than that of mash bean at UAAR site during summer, 2002 (Table II).