PERFORMANCE EVALUATION OF TRACTOR DRAWN LASER LAND LEVELER 1641
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Date
2012-10
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JAU,JUNAGADH
Abstract
Precision land leveling is the foremost step for judicious use of
water and laser land leveler is one such device which could promote
efficient utilization of water. So, the present study was conducted at
College of Agricultural Engineering and Technology, Junagadh
Agriculture University, Junagadh to evaluate the performance of the
laser land leveler for land leveling in grading operation and to
investigate the effect of laser land leveler on soil properties like soil
moisture content and speed of operation, fuel consumption, effective
field capacity, theoretical field capacity, field efficiency and cost of
operation. Also the effect of laser land leveler on seasonal depth of
irrigation, crop parameters of groundnut and irrigation efficiency. The
standard deviation of reduced levels after leveling was 5.51 cm and
2,29 cm using the leveler blade and laser land leveler respectively,
which was 23.11 percent more than the leveler blade
The performance of a laser land leveler was compared with
leveler blade for seedbed preparation under a groundnut (Arachis
hypogaea L.) crop rotation. The study comprised two treatments with
fifteen replications with Large Plot Technique Design with fifteen
replications. The two leveling treatments consisted of leveler blade (Ti)
and laser land leveler (T2).
The operating speed of tractor achieved with laser land leveler
was 2.96 km h-i, with 3.1 lit h-i, fuel consumption, 69.53 percent field
efficiency while with leveler blade it was 4.68 km h-i, 2.8 lit h-i and
74.35 percent. The seasonal depth of irrigation of laser land leveler
and leveler blade was found (800 mm) .The treatments showed
significant crop yield (947.94 kg ha-i), harvesting index (25.08
percent) and water use efficiency was (1.19 kg ha-i mm-i) in laser land
leveler that were higher than that of leveler blade 740.03 kg ha-i,
18.22 percent and 0.93 kg ha ' mm-i respectively). Operational cost for
laser land leveler (2249.57 ? ha-i) were than that of the leveler blade
(756.21 ? ha-i) and higher benefit: cost ratio (B: C ratio) (1.58) was
observed in laser land leveler which was (1.30) for leveler blade.
11
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Farm Machinery and Power Engineering