Design, fabrication and testing of a power operated jab type paddy dibbler

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dc.contributor.advisorJippu, Jacob
dc.contributor.authorMaji Krishnan, G
dc.contributor.authorKAU
dc.date.accessioned2021-01-30T09:37:04Z
dc.date.available2021-01-30T09:37:04Z
dc.date.issued1997
dc.descriptionMTech.en_US
dc.description.abstractA power operated jab type paddy dibbler developed and tested at K.C.A.E.T, Tavanur is described. A cup feed type metering mechanism, discharged the seeds into the distribution wheel. Rotation of this wheel caused the transfer of seeds from the distribution wheel to the seed tubes. The to and fro motion of the plungers inside the five seed tubes closed and opened the port between the seed tran9fer tube and seed tube at predetermined intervals. A cam and follower arrangement fitted on the main shaft regulated the to and fro motion of the plungers. In operation, the rotation of the dibbler wheel caused the tip of seed tubes to make holes in the soil. At the time of penetration the plunger occupied a position farthest to the main shaft thus keeping the tip of seed tube closed. This prevented the entry of soil into the seed tube. After the seed tube has reached the maximum depth the plunger is moved up quickly transferring the seeds into the holes. The dibbler gave seed rates of 87.1, 74.6, 68.0, and 61.1 kg/ha at the speeds 0.788, 1.152, 1.530 and 1.778 km/h respectively in the field. It placed at an average 3-6 seeds in a hill at a depth of 4-4.2 cm. The number of seeds mechanically damaged was only 0.89 per cent and loss of viability due to mechanical damage was only 3.77 per cent. The average power required was 0.093 hp. Labour requirement was 60.68 man-h/ha. Cost of operation of this dibbler was Rs 86.0/h including the cost of power source. The jab type dibbler is convenient for use by both men and women.en_US
dc.identifier.citation171248en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810160737
dc.keywordsFarm Power Machinery and Energyen_US
dc.language.isoEnglishen_US
dc.publisherDepartment of Farm Power Machinery and Energy, Kelappaji College of Agricultural Engineering and Technology, Tavanuren_US
dc.subFarm, Machinery and Poweren_US
dc.themePower operated jab type paddy dibbleren_US
dc.these.typeM.Tech.en_US
dc.titleDesign, fabrication and testing of a power operated jab type paddy dibbleren_US
dc.typeThesisen_US
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