IMPROVED POTATO DIGGERS IN TERRACE CONDITION OF SIKKIM IN INDIA

R.K. TIWARI¹*, S.K. CHAUHAN², M. DIN³, J. YUMNAM^4
1ICAR-AICRP on UAE, College of Agricultural Engineering and Post Harvest Technology, Ranipool, Gangtok, 737135, Sikkim, India
²ICAR-AICRP on Utilization of Animal Energy, Bhopal, India
³ICAR-AICRP on UAE, College of Agricultural Engineering and Post Harvest Technology, Ranipool, Gangtok, 737135, Sikkim, India
⁴College of Agriculture, Central Agricultural University, Iroisemba, Imphal, 795004, Manipur, India
* Corresponding Author : rk96tiwari@gmail.com

Received : 29-05-2018     Accepted : 07-06-2018     Published : 15-06-2018
Volume : 10     Issue : 11       Pages : 6211 - 6214
Int J Agr Sci 10.11 (2018):6211-6214

Keywords : Improved diggers, light weight, digging efficiency, physical damage
Conflict of Interest : None declared
Acknowledgements/Funding : Author thankful to ICAR, New Delhi for providing financial support. Author also thankful to College of Agricultural Engineering and Post Harvest Technology, Ranipool, Gangtok, 737135, Central Agricultural University, Iroisemba, Imphal, 795004, Manipur, India
Author Contribution : All author equally contributed

Potato digging with improved diggers having high effective field capacities and higher digging efficiency was carried out, ensuring total losses within permissible limit. Light weight, single row animal drawn improved digger was developed and evaluated in terraces for harvesting tubers. The performance of the digger was also compared with power tiller mounted digger and traditional digging methods prevailing in the region. Light weight animal drawn potato digger was tested at average speed of 1.72 km/h at 120 mm depth of operation. Digging efficiency and field efficiency were 93% and 88% respectively. Effective field capacity and cost of operation were 0.030 ha/h and Rs 1250/ha. Labour requirement was 34 man-h/ha excluding 150 h for picking of potato after harvest which showed a saving of 38.25% in labour and 60.93% in cost of digging (including picking of potato) over traditional digging by kudal /spade in terraces. Physical damage to dug out tuber was about 1% as compared to 4.6% in power tiller mounted digger and 0.8% in manual digging. Effective field capacity of power tiller mounted potato digger of 300 mm size was 0.055 ha/h and its field efficiency and digging efficiency were 82% and 89.8% respectively. The cost of operation with improved digger was Rs 1250/ha as compared to Rs 3200/ha by manual method and Rs 1875/ha using power tiller mounted digger.

1. Anonymous (2006) Vision (2030) Central Potato Research Institute, Shimla, 7-9.
2. Tiwari R.K. and Srivastava P.K. (2012) In Souvenir of CAU Agri-Fair 2012, 60-65.
3. Anonymous (2014) CAU Farm Magazine. Central Agricultural University, Imphal, Manipur, 4 (3), 31
4. Anonymous (2007) CIAE Product Catalogue. Published by Director, Central Institute of Agricultural Engineering, Bhopal.
5. Pandey M.M., Ganesan S. and Tiwari R.K. (2006) Technical Bulletin No. CIAE/2006/121, 32-33
6. Singh G., Devnani R.S., Pandey M.M. and Majumdar K.L. (1997) Improved farm machinery, Research Digest. Central Institute of Agricultural Engineering, Bhopal, 227-229
7. Ahmad D., H Md. Akhir, Rukunudin I.H., Shamssuddin S. and Yahya A. (2014) Pertanika J of Science and Technology, 22 (1), 43-53.
8. Dash D.K., Dash S.K., Paul J.C., Mishra J.N. and Swain S.K. (1998) Agricultural Mechanization in Asia, Africa and Latin America (AMA), 29 (3), 67-70.
9. Amin E., Ibrahim M.M. and Farag A. (2008) Mansoura MISR Journal of Agril. Engg., 25 (4), 1225-1239.
10. Anonymous (2016) mcgill.ca/staff/depttshare/029 George Ramtahal 1971.pdf. Cited on March17, 2016.