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Abstract

Studied on performance evaluation of four different Jawahar lister tiller primary tillage tools by using digital dynamometer in vertisol. Performance evaluation on the basis of draft, unit draft, power requirement, energy requirement, performance index measurements were investigatedat two level of moisture content, 25% and 16%db through split plot design.Minimum value of draft (4.20 and 4.41 kN), unit draft (17.05 and 16.52 N/cm2), power requirement (2.90 and 3.04 kW) and energy requirement per unit volume (4.65 and 4.40 kW h/ha-cm) were obtained with moisture content of 25% and 16%db,respectively, with Jawahar tiller (T4) compared to other tillers. Maximum value of performance index was obtained at moisture content of 25%db(55.28) and 16%db (53.49) with Jawahar tiller (T4). Interaction effect of Jawahar tillers on unit draft, energy requirement per unit volume and moisture content were significant at 5% but performance index significant at 1% level.

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