1JafariJ F. A study of the metering of free following particulate solids using multi-flight screw Engineers[J].1991,205:113-120.
2Gianini G R,Chaneellor W J,Garrett R E. Precision planter using vacuum for seed pickup[J]. Transaction of the ASAE, 1967,10(2) : 607,614.
3LePori W A, Porterfield J G, Fitch Jr E C. Fluidic control of seed metering[J]. Transaction of the ASAE, 1972,17 (3) : 463-465.
4Zhang, D and Guo, Y, in IFIP International Federation for Information Processing[C]. Volume 293, Computer and Computing Technologies in Agriculture II , Volume I , eds. D. Li, Z. Chunjiang, (Boston.. Springer), pp. 2009,155-160.
