SOIL MOVEMENT FOR COMMON CHISEL PLOW SHARES IN EGYPT

Document Type : Original Article

Author

Assist. Prof. of Ag. Eng., Fac. of Ag., Benha U., Egypt.

Abstract

Movement of the soil particles during tillage operation is the result of the application of force by the tillage tools. The soil crushed due to the action of the applied force, and soil particles move in various directions. The extent of unnecessary soil movement by tillage tools during tillage practices will affect the rate of soil erosion. Moreover, there is a lack of experimental data concerning soil movement with currently used tillage tools and particularly the effect of repeated tillage over decades of time (Sharifat and Kushwaha, 1997).  Under this study, a factorial experiment (2x3x3x3) with random design was used. The tool operating parameters were share shape, plowing speed and constant level of share depth. On the other hand, the soil parameters were soil moisture content and soil compaction. Soil movement was determined using the tracer method introduced by Turkelboom et al. (1996). Results of statistical analysis showed that there are highly significant differences were obtained for the soil movements in three directions with all factors and with the interaction between factors at P£ 0.01. It could be concluded that the use of shovel share instead of sweep share for the same job will reduce soil movement and consequently reduce the rate of soil erosion. 

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