Comparison of postfire seeding practices for Wyoming big sagebrush

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In an experiment replicated at three burned sites in the northern Great Basin, this study compared Wyoming big sagebrush establishment across treatments differing by seed delivery technique, timing, and rate of seed application. Wherever density differed between treatments, it was consistently higher in certain treatment levels (minimum-till > conventional drill, drill-delivery > broadcast-delivery, fall broadcast > winter broadcast, and higher rates > lower rates). Densities declined between years at two sites, but we did not find evidence that declines were due to density-dependent mortality. Results indicate that seeding success can likely be enhanced by using a minimum-till imprinter seeding method and using seeding rates higher than typical postfire seeding recommendations for Wyoming big sagebrush.

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