Abstract
Abstract The physical effects of two direct drilling coulters on soil beneath and alongside the seed grooves were compared. A triple disc coulter produced more evidence of compactlon at the base of the groove than on the sidewalls. A chisel coulter produc~d no evidence of compaction in any region. Where initial soil bulk density approximated 1.00 g.cm-3, no effects on root growth resulted from triple disc compactlon. Where initial bulk denSIty was 1.32 g.cm-3, however, the triple disc coulter produced marked effects on early root development of lupin. The chisel coulter did not affect root development at any bulk density.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
