RESPONSE OF SOME RICE VARIETIES TO MECHANICAL HARVESTING BY COMBINE HARVESTERS
Ibrahim, A., Abdel-Wahab, M., Arnaout, M., El-Sharabasy, M. (2010). RESPONSE OF SOME RICE VARIETIES TO MECHANICAL HARVESTING BY COMBINE HARVESTERS. EKB Journal Management System, 37(3), 715-738. doi: 10.21608/zjar.2010.317696
Amira M. N. Ibrahim; M. K Abdel-Wahab; M. A. I. Arnaout; M. M. A. El-Sharabasy. "RESPONSE OF SOME RICE VARIETIES TO MECHANICAL HARVESTING BY COMBINE HARVESTERS". EKB Journal Management System, 37, 3, 2010, 715-738. doi: 10.21608/zjar.2010.317696
Ibrahim, A., Abdel-Wahab, M., Arnaout, M., El-Sharabasy, M. (2010). 'RESPONSE OF SOME RICE VARIETIES TO MECHANICAL HARVESTING BY COMBINE HARVESTERS', EKB Journal Management System, 37(3), pp. 715-738. doi: 10.21608/zjar.2010.317696
Ibrahim, A., Abdel-Wahab, M., Arnaout, M., El-Sharabasy, M. RESPONSE OF SOME RICE VARIETIES TO MECHANICAL HARVESTING BY COMBINE HARVESTERS. EKB Journal Management System, 2010; 37(3): 715-738. doi: 10.21608/zjar.2010.317696

RESPONSE OF SOME RICE VARIETIES TO MECHANICAL HARVESTING BY COMBINE HARVESTERS

Zagazig Journal of Agricultural Research
Volume 37, Issue 3, May and June 2010, Page 715-738  XML PDF (944.37 K)
Document Type: Original Article
DOI: 10.21608/zjar.2010.317696
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Authors
Amira M. N. Ibrahim email 1; M. K Abdel-Wahab1; M. A. I. Arnaout2; M. M. A. El-Sharabasy2
1Agric. Eng. Dept., Fac. Agric., Zagazig Univ., Egypt.
2Agric. Eng. Dept., Fac. Agric., Zagazig Univ., Egypt
Abstract
Field experiments were carried out during the agricultural seasons of 2007 and 2008 at Kafr El-Hamam farm, Sharkia governorate to investigate the response of two rice varieties (Sakha-101 and Giza-178) to mechanical harvesting using two combine harvesters (Yanmar and Claas) at four average forward speeds of 0.5, 1.2 , 1.9 and 3.1 km/h and four average grain moisture contents of 15, 18, 21 and 25%. The results obtained reveal that, the minimum total grain losses were 2.70 and 3.9%; 2.76 and 3.0% at average grain moisture content of 15% and forward speed of about 1.2 km/h, using Yanmar and Claas combines to harvest rice crop (Sakha-101 and Giza-178) varieties respectively. The maximum field capacity values were 0.97and 2.72 fed/h ; 0.94 and 2.60 fed/h at average grain moisture content of 15% and  forward speed of about 3.1 km/h, using Yanmar and Claas combines to harvest rice crop (Sakha-101 and Giza-178) varieties, respectively. The maximum cutting efficiencies (%) and the minimum specific energy consumed values (kW.h/fed) were (92.7 and 93.7 % ; 91.6 and 90.5 %) and (14.62 and 8.45 kW.h/fed ; 21.26 and 9.38 kW.h/fed) at average grain moisture content of 15% and forward speed of about 0.5 km/h, using Yanmar and Claas combines to harvest rice crop (Sakha-101 and Giza-178) varieties, respectively. The minimum criterion cost values for harvesting both rice crop varieties (Sakha-101 and Giza-178) were 263.00 and 331.60 L.E/fed ; 236.6 and 251.8 L.E/fed at average grain moisture content of 15% and forward speed of about 0.5 km/h, using Yanmar and Claas combines to harvest rice crop (Sakha-101 and Giza-178) varieties, respectively. 
Keywords
Harvesting; field capacity; field efficiency; power required; specific energy consumed; harvesting cost
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