期刊名称：Advance Journal of Food Science and Technology
印刷版ISSN：2042-4868
电子版ISSN：2042-4876
出版年度：2015
卷号：7
期号：2
页码：139-143
DOI：10.19026/ajfst.7.1282
出版社：MAXWELL Science Publication
摘要：Traditional millet drilling method has a problem of labor-intensive artificial thinning-out, so a negative-pressure precision millet seed-metering device was designed to realize millet precision dibble seeding. Single factor experiment researches effect of rotational speed and air-chamber vacuum of seed-metering device on its seed-metering passing rate, repeat-sowing rate and leak-sowing rate. By means of orthogonal experiment method, optimal parameters of seed-metering device were defined, which was 20 r/min rotational speed, 4 mm bore diameter, 1.5 KPa air-chamber vacuum and 55 mm air cut valve arc length. The field test result shows that the seed-metering device meets completely standards of "Single-seed (Precise) Seeder Technological Requirements" and agronomic requirements.
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