关键词: 负压吸附；烤烟；播种器；育苗

Abstract:

Currently tobacco seedling relies on manual planting, which is time and labor concuming. In order to effectively reduce labor cost, improve labor efficiency, and satisfy the need of seedling intensification, large scale, and mechanization under new situation, an aspirated-type tobacco planter was designed. This machine used the principle of negative air pressure, absorbed and released tobacco seeds with precise punching seed tray, to realize accurate and fast planting. According to this concept and combined with the pratical application and cost keeping, a design plan was forward and a model machine trial was produced. Through test, this machine was found easily to operate and sow with fine accuracy and high efficiency. It could save 45.9%~83.9% sowing time compared with the contrast, and the germination rate was over 92%. The seeding quality was accordance with tobacco sowing and seedling.

Key words: aspirated-air, flue-cured tobacco, planter, seedling culture