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Two nonbloating legumes, sainfoin (Onobrychis viclae folia Scop) and birdsfoot trefoil (Lotus corniculatus L.), were evaluated fin pure stands and in mixtures for use in pasture, hay-pasture, and hay-stockpile management regimes. Both species, seeded in pure stands or in mixtures, yielded more forage in a hay-stockpiling management regime than in a pasture or hay-pasture management regime. In the year of establishment, Remont, a twocut-type sainfoin cultivar, contributed significantly more to yield than Eski, a one-cut-type sainfoin cultivar, and both sainfoins and sainfoin-birdsfoot trefoil mixtures yielded more than birdsfoot trefoil alone. Over the 4-year study period, Remont yielded more than Eski under pasture management, the same as Eski under hay-pasture management, and much less than Eski under the haystockpile management. Under the hay-pasture management regime, Eski yielded more than Remont at the hay harvest, but less at subsequent pasture harvests. Under the hay-stockpile management regime, Eski contributed much more to yield than Remont at the hay harvest, but yields were equal at the late-September stockpile harvest. Eski was more compatible with birdsfoot trefoil under the hay-stockpile management system, and produced a higher quality forage at the late-September harvest. Stand persistence and vigor of both sainfoins under the haystockpile management system were better than under other systems.
Key Words: Onobrychis viciaefolia Lotus corniculatus Forage management Competition
2 Agronomist, We:~tern Region, ARS, USDA, Bozeman, Montana 59715.
Received for publication January 2, 1973.
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