<em>Haor</em> represents the food basket of Bangladesh and rice is the only crop grown once a year. Harvesting of rice is labor-intensive works and required migrated labor to complete the harvesting works....<em>Haor</em> represents the food basket of Bangladesh and rice is the only crop grown once a year. Harvesting of rice is labor-intensive works and required migrated labor to complete the harvesting works. Mechanical intervention of rice harvesting is urgently needed to increase the productivity. The proper knowledge of economic valuation and operational necessities needs to use of combine harvesters. Research objective was selected to test the technical and economic analysis of Zoomlion rice combine harvester (which is originally developed in China) in Maisherkandi, Mithamain Upazila under Kishoregonj district. The above-mentioned areas are representing <em>haor</em> areas of Bangladesh. Based on the straight-line method, fixed cost items which are machine purchase price, shelter, tax, and insurance were calculated. During the operation of the combine harvester variable cost items such as maintenance and repair, fuel, oil, drivers and guidance were collected. The breakeven point was calculated in terms of the hectares that must be harvested yearly to cover fixed annual costs;and the payback period. Harvesting speed ranged from 1.23 - 3.20 km<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>hr<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">−</span></span></span>1</sup>. The field capacity of harvester was obtained 0.15 ha<span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span>hr<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;">−</span></span>1</sup> and consumed fuel of up to 32 L<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ha<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">−</span></span></span>1</sup>. Field sizes of less than 800 m<sup>2</sup> should be avoided for the Zoomlion combine harvester to operate the harvester machine in an efficient manner. The combine produced grains loss ranging from 1.60% - 1.91%. At an initial cost of Tk 2,000,000, owning the combine harvester becomes profitable after 20 ha of paddy field harvested at a harvesting capacity of 0.15 ha<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>hr<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">−</span></span></span>1</sup>. Vibration and noise were observed in tolerable limit of the operator. The operator felt comfort to operate the machine. This machine is capable to operate in the muddy field having a water height of 4 - 8 cm. Workability of the combine harvesters depended on soil, weather, crop condition, land size and shape. The combine harvester was able to develop sufficient traction in soft soil during harvesting period in <em>haor</em> area. Zoomlion harvester is a cost-effective and time-saving machine but the initial costs are higher.展开更多
文摘<em>Haor</em> represents the food basket of Bangladesh and rice is the only crop grown once a year. Harvesting of rice is labor-intensive works and required migrated labor to complete the harvesting works. Mechanical intervention of rice harvesting is urgently needed to increase the productivity. The proper knowledge of economic valuation and operational necessities needs to use of combine harvesters. Research objective was selected to test the technical and economic analysis of Zoomlion rice combine harvester (which is originally developed in China) in Maisherkandi, Mithamain Upazila under Kishoregonj district. The above-mentioned areas are representing <em>haor</em> areas of Bangladesh. Based on the straight-line method, fixed cost items which are machine purchase price, shelter, tax, and insurance were calculated. During the operation of the combine harvester variable cost items such as maintenance and repair, fuel, oil, drivers and guidance were collected. The breakeven point was calculated in terms of the hectares that must be harvested yearly to cover fixed annual costs;and the payback period. Harvesting speed ranged from 1.23 - 3.20 km<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>hr<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">−</span></span></span>1</sup>. The field capacity of harvester was obtained 0.15 ha<span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span>hr<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;">−</span></span>1</sup> and consumed fuel of up to 32 L<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>ha<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">−</span></span></span>1</sup>. Field sizes of less than 800 m<sup>2</sup> should be avoided for the Zoomlion combine harvester to operate the harvester machine in an efficient manner. The combine produced grains loss ranging from 1.60% - 1.91%. At an initial cost of Tk 2,000,000, owning the combine harvester becomes profitable after 20 ha of paddy field harvested at a harvesting capacity of 0.15 ha<span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">∙</span></span></span>hr<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;"><span style="white-space:nowrap;">−</span></span></span>1</sup>. Vibration and noise were observed in tolerable limit of the operator. The operator felt comfort to operate the machine. This machine is capable to operate in the muddy field having a water height of 4 - 8 cm. Workability of the combine harvesters depended on soil, weather, crop condition, land size and shape. The combine harvester was able to develop sufficient traction in soft soil during harvesting period in <em>haor</em> area. Zoomlion harvester is a cost-effective and time-saving machine but the initial costs are higher.
