Abstract
A manually operated sprayer was developed and its performance studies were carried out in the department of Farm Power and Machinery. It can be used in the ground crops and as well as in the horticultural crops by changing only the nozzles. By this sprayer a maximum pressure of 20 kg/cm² can be developed. The maximum field capacity for ground crop application was 0.186 ha/hr at 5 kg/cm² pressure and for orchard application was 0.826 ha/hr at 10 kg/cm². The maximum horizontal distance covered by the spray drops produced by orchard nozzle was 11.43 m at 4 kg/cm² and the vertical distance covered by the same nozzle was 5.7 m at 60° spray angle. The cost of fabrication of the sprayer was 200 USD.
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