为满足穴盘芽播育苗的机械化要求，设计了一种玉米芽种植质钵育秧盘精量囊种装置，并对主要工作部件的结构和工作原理进行了介绍。同时，对主要参数进行了单因素、多因素试验研究和优化，并进行了验证试验。结果表明：当其他参数固定，型孔直径为14．5 mm、种箱速度为0．095 m／s 时，性能指标单粒率为93．12％，空穴率为2．01％，多粒率为4．87％，损伤率为0％，破碎率为0％，满足技术要求。%According to the requirement of factory seedling agronomics , a maize bud-seed precise filling device was presented for use in cold areas .The structure and working principle of the main working parts are introduced .Single-factor test and multi-factor test were performed to optimise the parameters of a maize bud-seeds bowl-tray precise device and to improve the filling performance .The test of optimization parameters was verified .The results show that when the other parameters are fixed , the shaped hole diameter is 15mm, the velocity of the seed box is 0.095m/s, the single-seed rate is 93.12%, the empty-seed rate is 2.01%, the multi-seed rate of is 4.87%, the damage rate is 0%, the broken rate is 0%.The performance index by testing verification can meet the technical requirements .
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