DEVELOPMENT AND EVALUATION OF RICE TRANSPLANTING MACHINE TO USE AS SPRAYING FOR COTTON CROP

Document Type : Original Article

Authors

1 Agric. Eng., Faculty of Agric., Al-Azhar University, Egypt.

2 Head Researcher, Agic.Eng. Res. Inst., Egypt.

3 Agric. Eng., Agic.Eng. Res. Inst., Egypt.

Abstract

The research are developed design and constructed a prototype mechanism attached with a transplanter and used as a power source in the same time, in order to increase its  efficiency. The sprayer was tested at four different spray heights, four different spray pressures, three different orifice diameter and four different nozzle spaces.
The maximum values of coefficient of uniformity were 75.78, 78.60 and 77.22 % at orifice diameters of 0.50,1.0, and 1.5 mm, respectively, with spray height of 700 mm and spray pressure of 500 kPa.
It is clear that the maximum values of coefficient of symmetry were obtained with the orifice diameter of 1.0 mm. The highest values of coefficient of symmetry were 91.66, 93.16, 94.50and 95.50 % at spray heights of 400,500,600, and 700 mm, respectively, with spray pressure of 500 kPa and orifice diameter of 1.0 mm.
The maximum values of coefficient of uniformity were 78.75, 83.15, 84.75 and 81.15 % with nozzle spaces of 300,400,500,and 600 mm, respectively, at spray height of 700 mm and spray pressure of 500 kPa. While the total costs for spraying operation was 20.45, and 21.56 LE/h ( 13.4 and 14.1 LE/fed ) with the same above twice forward speeds.

Main Subjects


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