Development and evaluation of a tractor-operated automatic gun sprayer for cotton crop
automatic gun sprayer
Keywords:Droplet size, droplet density, nozzle orientation, leaf hopper and aphids, cost of operation
A tractor-operated automatic gun sprayer was developed for the cotton crop. The unit consists of frame structure, spray tank, horizontal triplex pump, control valves, spray gun nozzle, pressure gauge, strainer, hydraulic agitator and actuating mechanism. The power to drive the HTP pump was taken from the tractor power take off (PTO) through a belt and pulley. The actuating mechanism consists of motor and worm gear reduction. Two motors with 0.5 kW each (12 V dc) were used to provide oscillation motion to spray guns and motors get power from the tractor battery. The rotation angle of the spray gun is 30° horizontally. Provision was also made to fold the spray boom while in transport. The spray pattern could be adjusted based on the application of chemicals. This study was conducted to determine the suitable nozzle orientation (0, 15 and 30° downwards) to field crops. The orientation of the spray nozzle was maintained by using the metal protractor. The laboratory experiments were carried out by using the actual cotton plant. The best nozzle orientation for maximum droplet density and droplet size as 15° downward. Leaf hopper [Amrasca biguttula (Ishida)] and aphids [Aphis gossypii (Glover)] control in the cotton crop after 7th day of spraying dinotefuran insecticide from the automatic gun sprayer and conventional tractor-operated gun sprayer was 87, 86 and 58 %, and 50 %, respectively. The total cost required to fabricate the sprayer was US$ 1008. The cost of operation of the tractor operated automatic gun sprayer was found to be US$ 4.7/ ha.
Anonymous. 2017. Package of Practice for Crops. University of Agricultural Sciences, Raichur. Karnataka, India.
Dhawan AK, Sidhu AS, Simwat GS. 1988. Assessment of avoidable loss in cotton (Gossypium hirsutum and G. arboreum) due to sucking pests and bollworms. Indian Journal of Agricultural Sciences 58(4): 290–292.
Babasaheb G, Ravi, M. 2013. Field evaluation of tractor operated boom sprayer of cotton crop. International Journal of Agricultural Engineering, 6(2), 372-374.
Gholap BS, Ravi M, Dhande KG. 2012. Laboratory performance evaluation of 12 m tractor mounted boom sprayer for cotton crop. International Journal of Agricultural Engineering, 5(1), 31-36.
Gupta P, Sirohi NPS, Kashyap PS. 2011. Effect of nozzle pressure, air speed, leaf area density and forward speed on spray deposition in simulated crop canopy. Annals of Horticulture 4(1): 63–71.
Jain SK, Dhande KG, Aware VV, Jaiswal AP. 2006. Effect of cone angle on droplet spectrum of hollow cone hydraulic nozzles. Agricultural Mechanization in Asia, Africa and Latin America 37(1): 51–53.
Jassowal NS, Singh SK, Dixit AK, Rohinish K. 2016. Field evaluation of a tractor operated trailed type boom sprayer. Agricultural Engineering Today 40(2): 41–52.
Minov V, Cointault F, Pieters JG, Nuyttens D. 2014. Spray nozzle characterization. Aspects of Applied Biology 122: 353–363.
Mohan S, Monga D, Kumar R, Nagrare V, Nandini G, Vennila S, Tanwar RK, Sharma OP, Someshwar B, Meenu A, et al. 2014. Integrated Pest Management Package for Cotton. National Centre for Integrated Pest Management, New Delhi: India.
Nageshkumar T, Anantachar M, Veerangouda M, Prakash KV, Nadagouda S, Koppalkar BG. 2018. Bio-efficacy of tractor operated automatic gun sprayer. International Journal of Current Microbiology and Applied Sciences 7(8): 3174–3177. https://doi.org/10.20546/ijcmas.2018.708.339
Nalavade PP, Salokhe VM, Jayasuriya HPW, Hiroshi N. 2008. Development of a tractor mounted wide spray boom for increased efficiency. Journal of Food, Agriculture and Environment 6(2): 164–169.
Oerke EC, Dehne HW, Schoenbeck F, Weber A. Crop Production and Crop Protection. Amsterdam, The Netherlands: Elsevier; 1994.
Shukla LN, Sandhar NS, Singh S, Singh J. 1987. Development and evaluation of wide-swath tractor-mounted sprayer for cotton crop. Agricultural Mechanization in Asia, Africa and Latin America 18(2): 33–36.
Tamilselvi P, Krishnan A. 2016. Ergonomic evaluation of conventional agricultural sprayers with respect to human performance. Journal of Agricultural Science Digest 36(3): 179–184.
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Copyright (c) 2022 Nagesh Kumar T, M Anantachar, M Veerangouda, KV Prakash, S Nadagouda, BG Koppalkar, Sushilendra Advi Rao, M Murali, V Raghavendra
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