Fig. 5 Total above-ground phytomass (TAGP) as a function of average seasonal crop water stress index (CWSI) for six birdsfoot trefoil irrigation treatments in 1994, 1995, and two treatments in 1996. Symbols indicate: LS (, , ) and C (+, *, open plus sign) for 1994, 1995, and 1996, respectively. Symbols indicate: D30–F(50, 100) (, •), and (, ); and D60–F (50, 100) (, ) and (, ) for 1994 and 1995, respectively

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