Development of air assisted sprayer for greenhouse floriculture crops
2013
Wandkar, Vilas Sachin (Maharana Pratap University of Agriculture and Technology, Rajasthan (India). College of Technology and Engineering, Department of Farm Machinery and Power Engineering Udaipur) | Mathur, Mohan Shailendra (Maharana Pratap University of Agriculture and Technology, Rajasthan (India). College of Technology and Engineering, Department of Farm Machinery and Power Engineering Udaipur) | Gholap, Sukhdeo Babasaheb (Maharana Pratap University of Agriculture and Technology, Rajasthan (India). College of Technology and Engineering, Department of Farm Machinery and Power Engineering Udaipur) | Jadhav, Prakash Pravin (Maharana Pratap University of Agriculture and Technology, Rajasthan (India). College of Technology and Engineering, Department of Farm Machinery and Power Engineering Udaipur)
Floriculture is one of the major sectors in Indian agriculture. Main threats to floriculture production are insects, pests and diseases. Therefore, a motor operated air assisted sprayer was developed for greenhouse floricultural crops. A tapered air sleeve was designed and made with fiber reinforced PVC material in order to get uniform air velocity at each outlet. The boom was developed to support air sleeve and nozzles. The centrifugal blower of capacity 0.40 m3-s-1 was used on the system to produce air stream in the sleeves. A horizontal triplex power pump of 16 l-min-1 capacity was used to create necessary pressure in the nozzles. Blower and pump were operated by 3.73 kW electric motor. The whole assembly of the sprayer was mounted on the trolley. The performance of developed sprayer was evaluated in the laboratory to study the effect of different air velocity (9, 12, 16 and 20 m-s-1) and pump discharge (2.5, 4.5, 7 and 9 l-min-1) levels on droplet size, droplet density and uniformity coefficient at six different positions of artificial plant canopy. The optimum results of droplet size (100-150 μm), droplet density (25-35 droplets per cm2) and uniformity coefficient (near unity) at all plant positions were observed for air velocity of 20 m-s-1 and pump discharge of 2.5 l-min-1.
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