NDLI: Sugarbeet Yield Monitoring for Site-Specific Farming Part I–Laboratory Tests and Preliminary Field Tests

Content Provider	Springer Nature Link
Author	Walter, J. D. Backer, L. F.
Copyright Year	2003
Abstract	A site-specific sugarbeet yield monitoring system was developed and tested. Two weight-sensing systems were developed, tested, and evaluated on a laboratory test conveyor. One system used 152 mm (6 in.) idler wheels attached to load cells. The instrumented idlers replaced an existing chain supporting idler on each side of the harvester outlet conveyor. The second system replaced two existing idlers on each side of the harvester outlet conveyor with slide bars covered with UHMW plastic. A product flow rate was obtained from the combined load cell outputs and conveyor speed. Laboratory tests to predict accumulated weight showed a 2.5% error for the slide bar system and a 3.5% error for the idler wheel system. As a result, field testing was performed exclusively with the slide bar weight-sensing system. Calibration was obtained by comparing accumulated truckload weight as indicated by the weight-sensing system to measured gross sugarbeet weight on individual trucks. Typical weight errors ranged from 2% to 3% with an average error of 2.3%. Site-specific yield information was derived from the sugarbeet flow, harvester speed and width, and DGPS receiver. Sugarbeet yield maps were developed as a visual management aid.
Starting Page	421
Ending Page	431
Page Count	11
File Format	PDF
ISSN	13852256
Journal	Precision Agriculture
Volume Number	4
Issue Number	4
e-ISSN	15731618
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2003-01-01
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Meteorology/Climatology Remote Sensing/Photogrammetry Agriculture Statistics for Engineering, Physics, Computer Science, Chemistry & Geosciences Soil Science & Conservation
Content Type	Text
Resource Type	Article
Subject	Agricultural and Biological Sciences

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