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METWALLI, M., EL-NAGGAR, M. (1999). THE EFFECTIVENESS OF MOLDBOARD PLOW IN SANDY SOIL TYPE OF THE NEWLY RECLAIMED LAND. Egyptian Journal of Agricultural Research, 77(1), 485-497. doi: 10.21608/ejar.1999.326686
METWALLI E. M. METWALLI; MOHAMED A. EL-NAGGAR. "THE EFFECTIVENESS OF MOLDBOARD PLOW IN SANDY SOIL TYPE OF THE NEWLY RECLAIMED LAND". Egyptian Journal of Agricultural Research, 77, 1, 1999, 485-497. doi: 10.21608/ejar.1999.326686
METWALLI, M., EL-NAGGAR, M. (1999). 'THE EFFECTIVENESS OF MOLDBOARD PLOW IN SANDY SOIL TYPE OF THE NEWLY RECLAIMED LAND', Egyptian Journal of Agricultural Research, 77(1), pp. 485-497. doi: 10.21608/ejar.1999.326686
METWALLI, M., EL-NAGGAR, M. THE EFFECTIVENESS OF MOLDBOARD PLOW IN SANDY SOIL TYPE OF THE NEWLY RECLAIMED LAND. Egyptian Journal of Agricultural Research, 1999; 77(1): 485-497. doi: 10.21608/ejar.1999.326686

THE EFFECTIVENESS OF MOLDBOARD PLOW IN SANDY SOIL TYPE OF THE NEWLY RECLAIMED LAND

Article 36, Volume 77, Issue 1, March 1999, Page 485-497  XML PDF (3.03 MB)
Document Type: Original Article
DOI: 10.21608/ejar.1999.326686
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Authors
METWALLI E. M. METWALLI; MOHAMED A. EL-NAGGAR
Agricultural Engineering Research institute, Agricultural Research Center, Dokki, Egypt
Abstract
This research work was carried out in Nobaria area to study the performance of moldboard plow in the new reclaimed soil to investigate proper tillage operations by using 3-bottoms moldboard plow with the 80 HP tractor (60 kW). The results show that the optimum working speed was 6.75 km/h (at no-load). At this speed the average slippage was 7.4%, 11.1% and 12.59% at tillage depths 20, 25 and 30cm re­spectively (less than 15%, allowable limit) and the power requirement 19.1, 22.5 and 26.0 kw respectively. The fuel consumptions were 7.98, 8.15 and 8.9 kg/h and the field capacities (or productivity) were 1.17, 1.13 and 1.11 fed/h at 20, 25 and 30cm tillage depths respectively. Also, the plow was working in stability case with the tractor, where both vertical and horizontal deviations were non-significant, and the loosening degree was 29, 30.8 and 33% of tillage depth, and the clods were in the acceptable range where the soil crumbling degree was 85.4, 86.07 and 87.01% at tillage depths 20, 25 and 33 cm in primary tillage. The vege­tation burying degree was 97.24, 97.64 and 97.79% at tillage depths 20, 25 and 30cm respectively.
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