Developed unit for picking rice straw from the field [electronic resource].

Includes references.

Within the framework of national strategy for management of agricultural wastes in the governorates of Egypt, trend prevails currently for dealing with these wastes to benefit from them. However, rice straw residues represent high quantities from these wastes. So,for the aims of this research has. been carried out of two objectives. The first objective was to develop a machine which pick-up rice straw directly from the soil surface after harvesting, where mechanical design for this unit was already conducted and the efficiency of picking wastes increased than the traditional systems by a large percentage. Then, the second objective was to clean up the fields immediately after crop harvesting to increases the needed time to the next crops. The evaluation of the developed pick-up unit is carried out in 2011- 2012 seasons in Agric. Eng. Dept., Mansoura Univ. to investigate the effect of some engineering parameters by analyzing the relative relationships between the various parameters such as the effect of forward speed, tilt angles and straw holders clearance on pick-up efficiency, losses, flow rate and productivity. The results indicated that the maximum value. of straw pick-up efficiency was 98.60% obtained at 0.784 /an.h-1 of for-Ward speed.

Summary in Arabic.

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