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<br />-l <br />C) <br />c'") <br />0 <br />8 <br />. . TABLE 4 <br />'-' <br /> GRAND VALLEY SALINITY PROJECT <br /> SEVEN-YEAR SUMMARY OF IRRIGATION MONITORING DATA, 1985-1991 <br />Year Field No. of Inflow Outflow Infilt. ETa D.P.11 Irrig.21 <br /> size (ae) irrig. (in) (in) (in) (in) (in) Effie. (t) <br />1985 20 8 63.1 16.8 46.3 24.2 27.7 30 <br />1986 20 7 55.3 19.1 36.3 25.1 14.1 40 <br />1987 19 7 53.5 16.7 36.8 27.1 13.0 45 <br />1988 20 9 55.4 14.1 41. 3 27.5 13.5 50 <br />1989 21 9 53.9 14.5 39.4 28.2 11.5 52 <br />1990 15 8 61.3 18.6 42.7 25.4 17.0 42 <br />1991 15 7 56.4 14.9 41.5 26.7 15.9 45 <br />Averaae 19 8 57.0 16.4 40.6 26.3 16.1 43 <br /> <br />l/D.P. is average deep percolation for all surface and sprinkler irr. sites <br />2/Pereent irrig. Effie. = (inflow - outflow - D.P. / inflow) x 100 <br /> <br />17 <br />