Abstract
Two major procedures involving the use of a fiber optic borescope were established for the purpose of: 1. in situ root growth monitoring and 2. iron ochre inspection in subsurface drainpipes. The root image obtained was used to calculate root length using the Newman grid method. The effects of groundwater levels on root growth of silage corn were clearly indicated by the calculated root intensities (length per unit area). Further quantification of root intensities could be achieved using photographic images in a video digitizing process. Iron ochre in a subsurface drainage system was visually inspected. The severity of ochre occurrence was easily estimated from photographic images. The results suggest that permanent observation holes for routine maintenance purposes may be beneficial in future drainage system design.
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.
