National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Weeding is an important but equally labour intensive agricultural operation. Delay and negligence in weeding operation affect the crop yield and in many cases cause complete crop failure. Mechanical weed control not only uproots the weeds between the crop rows but also keeps the soil surface loose, ensuring better soil aeration and water intake capacity. A study was conducted in farmer’s field at Tondamattur village of Coimbatore district to develop a walk behind engine operated weeder for upland crops and to analyse the effect of operational parameters on the performance of walk behind engine operated weeder. The weeding efficiency of the prototype weeder was determined by weed count method. The factorial analysis of the measured data was performed to assess the influence of the variables viz., number of blades (N), rotational speed of weeding rotor (S) and depth of operation (D) on weeding efficiency. The main effects of number of blades (N), rotational speed of weeding rotor (S) and depth of operation (D) were significant at 1 per cent level of probability. But the effect of combination of rotational speed of weeding rotor (S) and depth of operation (D) was non-significant. The maximum weeding efficiency of 87.29 per cent was achieved with 4 number of weeding blades and 75 mm depth of operation at 250 rev/min rotational speed of weeding rotor.
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