الفهرس 
Sugar beet harvesting machine developmentOnly 14 pages are availabe for public view
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Abstract
Sugar beet is one of the most important crops, not only for sugar production, but also for producing fodder and organic matter for the soil. Mechanical sugar beet harvesters are not common in Egypt, manual methods are exhaustive, and impractical. Sugar beet harvesting is carried out in Egypt manually by hand digging, pulling the roots out by shovel .and hoe, or by using a chisel plow to dig out and collecting the roots manually. Mechanical harvesting of sugar beet resulted in drastic reduction of 86 % in hard labor required for harvested beet and up to 69 % in cost of harvest. The main objectives of the present study may be summarized as follows: 1- To manufacture a combine machine from the local materials to suit the lifting, topping and collecting operations of sugar beet roots in one process. 2- To evaluate the performance of the fabricated combine machine under the Egyptian condition using the available power tiller on farms. 3- To evaluates the effect of forward speed, leaves holder speed, knife speed an various soil moisture content on the following factors. Lifting and topping efficiency, total damaged roots (cut and bruise damage), harvesting efficiency, effective field capacity, specific fuel consumption, power and energy requirements, draft force requirements and cost hasvesting, General specifications of the manufactured machine which used for harvesting sugar beet were 240 cm total length, 11 0 cm total width and 300 kg total mass,. The technical specifications of the machine parts which used for harvesting sugar beet crop are root lifting unit, beet conveyer unit, leaves removing unit, beet elevator, beet collecting tank and power transmission system. The machine was fabricated with locally available materials at the Manufacture Center of Kafr El -Sheikh. A 60 hp Nasr tractor drew it and the power was transmitted from the tractor to the machine gearbox through the P.T.O. shaft. The experiment wascarried out at Almorabin village, Kafr El-sheikh Governorate during agricultural season of 2002 - 2003, the sugar beet (Beta poly) was usedand the total planted area was about 4 feddans.