Field experiments were carried out to evaluate a new developed reaper(Japanese harvesting reaper model KUBOUTA -AR 120) on pulling flax crop. The effect of four pulling rollers speeds of 0.39 , 0.52 , 0.65 ,and 0.78 m/s , three machine forward speeds of 1.2 , 1.5 , and 1.8 km/h ,and three stalk moisture contents of 17.30 , 14.81, and 11.56 % . On actual field capacity, field efficiency, yield output, stalk damage and total stalk losses were undertaken. And also, an estimation of energy requirements and operating cost were determined. Results indicated that, the maximum value of actual field capacity, field efficiency and stalk yield output were 0.53 fed./h, 93% and 2.656 ton/h , respectively at pulling speed of 0.78 m/s , machine forward speed of 1.8 km/h and stalk moisture content of 11.56 %. However the lowest value of energy requirement of 1.97 kW.h/ton was recorded under the same mentioned above conditions. Meanwhile, the minimum values of stalk damage and stalk losses were 1.41% and 0.62 % , respectively at machine forward speed of 1.2 km/h , pulling speed of 0.78 m/s and stalk moisture content of 17.30 % .
Anew prototype device for mechanical control water-hyacinth plants must be adapted using local materials. The attempt was to get rid of water-hyacinth plants from small canals and waterways through season 2013 at El-Shakeiloba village, Elberolos lake, Kafr El-Sheikh Governorate. It was evaluated under different conditions included machine forward speed, gathering reel speed and mean of water level height on field capacity, productivity, gathering efficiency, chopping efficiency, power consumption and operation cost. The results showed that the new prototype device produced maximum of field capacity and productivity of 49.93 m²/min and 6.017 Mg/h recorded with forward speed of 0.5 m/s, gathering reel speed of 0.94 m/s and water level height more than 150 cm. Meanwhile, maximum value of gathering efficiency was 98.82% and minimum value of machine losses was 1.18 % recorded with forward speed of 0.26 m/s, gathering reel speed of 0.94 m/s and water level height more than 150 cm. Besides, maximum of chopping efficiency was 87.41% recorded with forward speed of 0.26 m/s, and gathering reel speed of 0.56 m/s . Whereas, minimum value of power consumption and operation cost were 10.285 kW and 24.55 L.E/h respectively, recorded with forward speed of 0.26 m/s, gathering reel speed of 0.56 m/s and water level height more than 150 cm.
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