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Full-Text Articles in Forest Sciences
Pneumatic Metering Of Hardwood Tree Seeds, Larry G. Wells, T. W. Richards, Timothy D. Smith, George B. Day
Pneumatic Metering Of Hardwood Tree Seeds, Larry G. Wells, T. W. Richards, Timothy D. Smith, George B. Day
Biosystems and Agricultural Engineering Faculty Publications
A commercial, no-till row planter was extensively modified for use in direct seeding of hardwood tree species in surface mine reclamation. A pneumatic seed metering system was designed, fabricated, and mounted on the planter frame.
The metering device was tested under laboratory conditions which simulated varying terrain slope and field speed with seeds of various hardwood tree species. Metering efficiencies of 97% were achieved for pin oak seeds at 3.2 km/hr (2.0 m/h) and 50% slope. For red oak, 97% efficiency was achieved for 50% slope at 4.0 km/h (2.5 mph). Unsatisfactory metering was noted during tests of larger seeds, …