Author(s):

Chumman Lal Sahu, Dr. DK Nilatkar and Dr. Parmanand

Abstract: Performance evaluation of selected Jawahar Lister tiller primary tillage tools (X₁), shovel (X₂) and sweep (X₃) were studied by using digital dynamometer in vertisol. Performance evaluation on the basis of draft, unit draft, power requirement, energy requirement, performance index measurements were investigated through split plot design. In this research, the experiment was conducted in three operating speed, 1.96, 2.35, and 3.60 km/h, and at the same soil moisture content 10% db. Performance index was maximum (100.51, 125.20, 97.01) at all speeds with Jawahar tiller (X₁), compared to shovel and sweep. No signification variation in draft, unit draft, energy requirement and pulverization were obtained with variation in speed of operation, with Jawahar tiller (X₁), shovel and sweep. Power requirement was max for all the tools at higher speed of 3.60 km/h. Interaction effect of three tillage tools (selected Jawahar tillers, shovel, and sweep) on draft, power requirement, energy requirement per unit area and three forward speeds were significant at 1% but performance index was significant at 5% level. Max area of furrow (269.66 cm²) was obtained with Jawahar tiller (X₁). Power requirement was minimum, pulverization and performance index was max with Jawahar tiller (X₁) compared to shovel & sweep, therefore, the performance of Jawahar tiller (X₁) was best.

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