EI-Khateeb, H., Marey, S., Sayed-Ahmed, I. (2006). EVALUATION AND OPTIMIZATION THE PERFORMANCE OF TWO DIFFERENT POTATO HARVESTING MACHINERY TECHNIQUES. Journal of Soil Sciences and Agricultural Engineering, 31(6), 3727-3741. doi: 10.21608/jssae.2006.204042
H.A. EI-Khateeb; S. A. Marey; I. F. Sayed-Ahmed. "EVALUATION AND OPTIMIZATION THE PERFORMANCE OF TWO DIFFERENT POTATO HARVESTING MACHINERY TECHNIQUES". Journal of Soil Sciences and Agricultural Engineering, 31, 6, 2006, 3727-3741. doi: 10.21608/jssae.2006.204042
EI-Khateeb, H., Marey, S., Sayed-Ahmed, I. (2006). 'EVALUATION AND OPTIMIZATION THE PERFORMANCE OF TWO DIFFERENT POTATO HARVESTING MACHINERY TECHNIQUES', Journal of Soil Sciences and Agricultural Engineering, 31(6), pp. 3727-3741. doi: 10.21608/jssae.2006.204042
EI-Khateeb, H., Marey, S., Sayed-Ahmed, I. EVALUATION AND OPTIMIZATION THE PERFORMANCE OF TWO DIFFERENT POTATO HARVESTING MACHINERY TECHNIQUES. Journal of Soil Sciences and Agricultural Engineering, 2006; 31(6): 3727-3741. doi: 10.21608/jssae.2006.204042
EVALUATION AND OPTIMIZATION THE PERFORMANCE OF TWO DIFFERENT POTATO HARVESTING MACHINERY TECHNIQUES
The present study was carried out during 2006 winter season at Monshat Abbas village, Kafer EI-Shiekh Gavernora, to evaluate and compare the performance of two different principles potato digging machinery techniques namely: the application of the normal ridger, and the application of the elevator digger for digging and lifting potato tubers the performance of the two investigated harvesting machinery system were evaluated in terms of the lifted, damaged tubers, harvesting efficiency, energy requirements, effective field capacity, field efficiency and cost of harvesting potato operation. The mechanical harvesting methods were investigated at four levels forward speed of 2.5, 3.78, 5.00 and 6.25 km/h and share tilt angel of 0.227, 0.297 and 0.384 rad. (13, 17 and 22 deg). It must be denoted that, the tested elevator forward speeds are adapted as an equivalent speed ratio (forward speed to elevator speed) of 1, 1.5, 2 and 2.5.
Elevator potato digger speed ratio of 2 gave the proper effective filed capacity of 0.91 fed/h, lifted tubers of 93.93%, total damage of 3.13%, harvesting efficiancy of 96.84 and energy requirement of 15.72 kW.h/fed. Whereas, normal ridger the forward speed of 5 km/h gave the proper effective field capacity of 1.01 fed/h, lifted tubers of 86.57%, total damage 4.63%, harvesting efficiency of 95.37% and energy requirement of 7.33 kW.h/fed for.
The best values of previous technical indicators were found to be at tilt angles of 0.297 and 0.384 rad (17 and 22 deg) for elevator potato digger and normal ridger, respectively.
The elevator potato digger exhibited the maximum net profit of 6611.80 L. E'/fed compared with 5856 L.E/fed for normal ridger.
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