Bibliography: p. 182-197. / xxii, 197 p. : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / The objectives of this study are: selection and construction of four narrow sowing points, evaluation of these points in terms of draught requirements and wear rates, comparison of the points in direct drilling systems and their effects on soil physical properties. / Thesis (Ph.D.)--University of Adelaide, Dept. of Agronomy & Farming Systems (Agricultural Technology), 1997
| Identifer | oai:union.ndltd.org:ADTP/260282 |
| Date | January 1996 |
| Creators | Shahidi, Seyed-kazem |
| Source Sets | Australiasian Digital Theses Program |
| Language | en_US |
| Detected Language | English |
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