Year: 2022 | Month: September | Volume 67 | Issue 4
Field Evaluation and Economic Analysis of Manual Drawn Rotor Weeder for Small Farms
S. Rahaman
C. Ramana
A. Srinivasa Rao
and B. Ravindra Reddy
DOI:10.46852/0424-2513.4.2022.6
Abstract:
A manual method of weeding operation is drudgeries, labour intensive and very high costlier operation, farmer usually spent 30 to 40 percent cost on weeding of entire crop production. The objective of the research work is to study the field evaluation and economic analysis of manual drawn rotor weeder for small agricultural farms. The following parameters viz., weeding efficiency, plant damage, field efficiency, cost of operation, breakeven point, payback period and benefit-cost ratio were evaluated and compared with manual method of weeding operation. The performance evaluation of manual drawn rotor weeder was carried out with three speed ratios i.e., 1:1, 1:2 and 1:3 among which 1:2 ratio was found to be best gear ratio. The range of weeding efficiency, plant damage and field efficiency were reported as 68 to 82%, 1 to 3% and 61 to 84, respectively. The obtained cost of mechanical weeder can save cost up to 77 percent as compared manual method. The estimated breakeven point was estimated based on time and area for manual drawn weeder can save 76.45 h and 1.44 ha duly. The estimated payback period was found to be 1 year. The total cost spent in development of manual drawn weeder was noted as ` 4780/- The obtained B-C ratio was found to be 3:1.
Highlights
- The total cost spent in development of manual drawn rotor weeder was only ` 4780.
- The benefit cost ratio for manual drawn rotor weeder was 3:1.
- The payback period estimated for manual rotor weeder was 1 year.
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