发明授权
US5414955A Hand held seeder 失效
手持播种机

Hand held seeder
摘要:
A wand with a plurality of ports is provided with vacuum and vibration and with controls therefor. Seeds are drawn to the ports by the vacuum and are singulated by a seed covering a single port. The singulated seeds are each deposited in one of a plurality of plug trays by release of the vacuum and assisted by the vibration of the wand.
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