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<br />:..0 <br />r-- <br />~1") <br />...... <br /> <br />, <br />..- <br /> <br />.--, <br />'--" <br /> <br />TABLE 6 <br /> <br />GRAND VALLEY SALINITY PROJECT <br />ACCEPTABLE AND ACTUAL DEEP PERCOLATION <br />FOR DIFFERENT CROPS, 1990 <br /> <br /> No. of <br />Cr-OD Fields ETa (i n.) AcceDtable D.P.11 Actual D.P.21 <br />Alfalfa 7 35.0 5.3 17.9 <br />Beans 2 15.9 2.4 26.6 <br />Cor-n31 6 21.9 3.3 17.7 <br />F. Gr-ain 4 15.4 2.3 20.3 <br />Gr-apes 1 28.7 4.3 5.6 <br />Onions 1 20.7 3.1 38.8 <br />Or-char-d 4 29.0 4.4 3.4 <br /> <br />1/ Average deep percolation in acre inches per acre. Acceptable D.P. for leaching purpose. for sal inily control is 15 percent. <br />l/ D.P. is average infiltrated depth (net application in inches) minus soi I water deficit at ti.e of irrigation. <br />3/ One site cut for silage <br /> <br />21 <br />