000 | 02212nam a22002537i 4500 | ||
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003 | URS | ||
005 | 20220117151104.0 | ||
008 | 170228b xxu||||| |||| 00| 0 eng d | ||
050 | 1 | 4 |
_aS683 _bF4696 2014 |
100 | 1 |
_aFigueroa, Michael Angelo DG, _eauthor |
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245 | 1 | 0 |
_aDesign, construction and evaluation of small-engine powered shallow cultivator-pulverizer / _cMichael Angelo DG Figueroa |
260 | 1 | _c2014. | |
300 |
_axi, 102 leaves : _bcolor illustrations ; _c28 cm |
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336 |
_2rdacontent _atext |
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337 |
_2rdamedia _aunmediated |
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338 |
_2rdacarrier _avolume |
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502 |
_aThesis _bBachelor of Science in Agricultural Engineering _cUniversity of Rizal System - Tanay _d2014 |
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504 | _aIncludes bibliographical references | ||
520 | _aThe main purpose of this study was to design, construct and evaluate the performance of small-engine powered shallow cultivator-pulverizer. The machine has an actual working width of 29 cm and 2.1 cm depth of cut. The effective field capacity of the small-engine powered shallow cultivator-pulverizer was higher than hand-held hoe at about 27.31 % when weeding and 34.49% when pulverizing. The time of operation using machine is lesser also work and fatigue are reduced. The weeding efficiency of the small-engine powered shallow cultivator-pulverizer is lower than the hand-held hoe, but it passed the 80% weeding efficiency based on the Philippine Agricultural Engineering Standard. The pulverizing efficiency of small-engine powered shallow cultivator-pulverizer is not significantly different compared to hand-held hoe, but they differ in terms of effective field capacity. The fatigue factor of the machine is 0.55 m2/hr for weeding and 0.48 m2/hr for pulverizing with field efficiency of 91.99% and 80.49% respectively. The operating cost of the small-engine powered shallow cultivator-pulverizer is Php 959.03. the break-even point sale is Php 5,832.00, payback period is 1.05 years and 3.25% return on investment for 10 years. The net benefit of the small-engine powered shallow cultivator-pulverizer is Php 1,264.50 for 10 years. | ||
650 | 0 | _aCultivators | |
650 | 0 |
_aWeeds _xControl |
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700 | 1 |
_aCruz, Amabel P. _eadviser |
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942 |
_2lcc _cT |
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_c16765 _d16765 |