Soil Bin Studies on Plug and Finger-type Onion Seedling Transplanting Mechanisms
DOI:
https://doi.org/10.52151/jae2018551.1641Keywords:
Onion seedling, soil bin, plug, fingerAbstract
A study was conducted to develop a plug- and finger-type onion seedling transplanting mechanisms in a soil bin and examine the effects of age of seedling and machine parameters (speed of operation, height of seedling drop, finger material) on plant spacing, planting depth, successful transplanting, furrow closure, filling efficiency and plant damage. Plant spacing ranged from 121.4 mm to 133.5 mm using plug metering mechanism, while it was 167.9 mm to 195.0 mm with finger-type metering mechanism. The percent seedling transplanted and percent furrow closure with plug mechanism varied from 76.67 % to 100 % and 73.33 % to 100 %, respectively; and in finger-type metering mechanism they ranged from 18.33 % to 78.33 % and 15 % to 73.33 %, respectively. Plug filling efficiency ranged from 96.67 % to 32.22 % with plug mechanism, and 95.28 % to 22.5 % with finger metering mechanism. Percent seedling damage with plug mechanism ranged from 0 % to 17.54 %, and was lower than 0 % to 31.05 % caused by finger-type metering mechanism. The performance of plug-type metering mechanism for onion seedling was closer to the recommended practices as compared to finger-type metering mechanism.
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