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Fig. 2. The effect over years of companion legume on combined (grass + legume) DM yield in the sward of binary mixtures of tall fescue and selected pasture legumes harvested during May at Alcalde, NM. Data are the means of three reps and two grazing frequencies [grazed bimonthly (mid-May, mid-July, and mid-September) or grazed monthly (mid-May to mid-September)]. Bars indicate the LSD (P 
0.05) for within year comparisons. Absence of an LSD on a date indicates no significant difference among treatments. Asterisks in formulas indicate which components of the polynomial regression analysis across years for each pasture treatment were significantly different from zero (P < 0.05).
