Document Type : Technical Note


Department of Agricultural and Food Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, P. O. Box: 721302, India.


A solar energy operated two-row weeder was developed for weeding in wetland paddy crop. Its major components are power source, power transmission system, weeding wheels, and a float. The power source comprised a DC motor, solar panel, and power storage unit with maximum power point tracker and motor controller. Solar panel/power storage unit through a motor controller supplied power to the DC motor and it was transmitted to the shaft of the weeding wheel through a dog clutch. A pair of wheels attached with jaw tooth and plane blades at wheel circumference was used for carrying out weeding and movement of the weeder in the field. A float was used to prevent sinkage of the weeder in soft soil which, in turn, ensured stability during operation. The developed weeder could do weeding at a rate of 0.06 ha per hour with field efficiency, weeding efficiency, and plant damage of 83.3 %, 83 % and 2-3 %, respectively. As compared to cono-weeder, the cost of weeding was 41.2 % lower due to higher field capacity and fewer labor requirements. Annual use less than 4.13 ha for the developed weeder was found uneconomical for carrying out weeding. The developed powering system comprising solar photovoltaic panels could supply power to do weeding continuously for 2 hours with a maximum discharge of 20 % from the battery.


Main Subjects

  1. Annual report, Department of Agriculture, Cooperation and Farmers Welfare, Ministry of Agriculture and Farmers Welfare, New Delhi, India, (2018), 4. (
  2. De Dutta, S.K., Principles and practices of rice production, John Wiley and Sons, USA, (1981), 469-472. (
  3. Gunasena, H.P. and Arceo, L.M., "Weed control studies with butachlor in direct seeded rice in Shri Lawlea", Proceedings of 8th Asian Pacific Weed Science Society Conference, Bangalore, India, (1981), 27-29. (Proceedings of 8th Asian Pacific Weed Science Society Conference, Bangalore, India, (1981). (
  4. Sathyamoorthy, K. and Kandasamy, O.S., "Critical period of crop weed competition in different rice culture (lowland transplanted and wet seeded rice)", Summary and Research Achievements, AICRPWC (ICAR), Coimbatore Centre, Tamil Nadu Agricultural University, Coimbatore, India, (1998). (
  5. Parthasarathi, M.N., "Control of rice weed with butachlor", Proceedings of Weed Science Conference, Indian Society of Weed Science, Andhra Pradesh Agricultural University, Rajendranagar, India, (1977), 179-180. (
  6. Khan, A.V. and Diesto, M., "Push type cono weeder for small rice farms", Investigation Intelligence, Vol. 23, (1987), 236-237. (
  7. Remesan, R., Roopesh, M.S., Remya, N. and Preman P.S., "Wet land paddy weeding-A comprehensive comparative study from south India", Agricultural Engineering International: The CIGR E-Journal, Vol. 9, (2007), 1-21. (
  8. Hossen, M.A., Islam, M.S., Huda, M.D., Zami, M.A., Bhuyan, M.G.K. and Nath, B.C., "Design and development of a weeder for both lowland and upland conditions", AMA-Agricultural Mechanization in Asia Africa and Latin America, Vol. 42, No. 2, (2011), 56. (
  9. Ambujam, N.K., "Performance evaluation of power weeder", Agricultural Mechanization in Asia, Africa & Latin America, Vol. 24, (1993), 16-18. (, (Accessed: 12 June 2016).
  10. Victor, V.M. and Verma, A., "Design and development of power-operated rotary weeder for wetland paddy", Agricultural Mechanization in Asia Africa and Latin America, Vol. 4, (2003), 27-29. (
  11. Alizadeh M.R., "Field performance evaluation of mechanical weeders in the paddy field", Scientific Research and Essays, Vol. 6, (2011), 5427-5434. (
  12. Deshmukh, G. and Tiwari R.K., "Impact of weeders for weed management in system of rice intensification (SRI)", Indian Journal of Weed Science, Vol. 43- No. 3-4, (2011), 243-244. (
  13. Ojomo, A.O., Ale, M.O. and Ogundele, J.O., "Effect of moisture content on the performance of a motorized weeding machine", IOSR Journal of Engineering (IOSRJEN), Vol. 2, No. 8, (2012), 49. (
  14. Olaoye, J.O., Samuel O.D. and Adekanye, T.A., "Performance evaluation of an indigenous rotary power weeder", Energy and Environmental Engineering Journal, Vol. 1, No. 1, (2012), 94-97. (, (Accessed: 10 June 2017).
  15. Said P.P, Shukla A. and Sahu K.R., "Field performance of power operated paddy weeder in comparison with manual weeders", Advancements in Life Sciences, Vol. 5, (2016), 2200-2203. (
  16. Shakya, H.B., Parmar, M.R., Kumpavat, M.T. and Swarnkar, R., "Development and performance evaluation of manually operated cono-weeder for paddy crop", International Refereed Journal of Engineering and Science, Vol. 5, No. 7, (2016), 6-17. (
  17. Kunnathadi, M., Jayan, P.R. and Abraham. C.T., "Development and testing of self-propelled cono-weeder for mechanized rice cultivation", Indian Journal of Weed Science, (2016), 25-28. (
  18. Seerangurayar, T., Shridar, B., Kavitha, R. and Manickavasagan A., "Performance evaluation of power weeders for paddy cultivation in south India", AMA, Agricultural Mechanization in Asia, Africa and Latin America, Vol. 48, No. 4, (2017), 76-81. (, (Accessed: 18 July 2018).
  19. Sirmour, A., and Verma, A., "Design and development of single row power weeder for rice", Journal of Crop and Weed, Vol. 14, No. 1, (2018), 163-169. (
  20. Waghmode, R.S., Shinde, S.R., Dixit, A.K., Chanchure, A.A., Jadhav, K.H. and Gudur, S.E., "Solar power tiller", International Journal of Engineering Science & Advanced Technology, Vol 5, No. 3, (2015), 149-156. (
  21. Kumari S., Mehta, A.K. and Meena, S.S., "Development and performance evaluation of solar operated power weeder", International Research Journal of Engineering and Technology (IRJET), Vol. 06, No. 7, (2019), 1340-1342. (
  22. Kachhot, A.R., Dulawat, M.S. and Vadher, A.L., "Development of solar operated walking type power weeder", Agricultural Science and Green Energy, Vol. 2, No. 2, (2021), 30-41. (
  23. Laguado–Serrano, M. A., Luna Paipa, E.A., Bustos–Márquez, L.F. and Sepulveda–Mora, S.B., "Performance comparison between PWM and MPPT charge controllers", Scientia et Technica, Vol. 24, No. 1, (2019), 6-11. (
  24. Anonymous, Indian Test Code, IS: 7927, "Method of field testing for manually operated paddy weeder", Bureau of Indian Standard (Indian Standard Institution), New Delhi, India, (1975). (, (Acessed: 10 July 2016).
  25. Fagiolari, L. and Bella, F., "Carbon-based materials for stable, cheaper and large-scale processable perovskite solar cells", Energy & Environmental Science, Vol. 12, No. 12, (2019), 3437-3472. (