Development and evaluation of an engine operated walk type drop down sprayer for cotton crop

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dc.contributor.advisorNarang, M.K.
dc.contributor.authorDhaliwal, Ranjot Singh
dc.date.accessioned2018-05-27T05:46:20Z
dc.date.available2018-05-27T05:46:20Z
dc.date.issued2018
dc.description.abstractAn engine operated walk type drop down sprayer was developed for spraying on cotton crop. The developed sprayer had eight nozzles. Boom was developed in T-shape. Six nozzles were attached on vertical part of the boom with three nozzles spraying in left horizontal direction and other three spraying in right horizontal direction. The boom was mounted on a wheel hand vehicle. Nozzle selected for the sprayer was tested under laboratory conditions under different fluid flow pressures (7.5, 10 and 12.5 kg/cm2). The spray width, spray angle and discharge rate of the nozzle were noted. The discharge rate increased from 611.47 ml/min to 829.53 ml/min; Spray angle increased from 75.7 to 83.0 degrees and swath width varied from 85.1 to 99.8 cm with increase in pressure from 7.5 to 12.5 kg/cm2. The sprayer was evaluated in the field at 10 kg/cm2 for three different forward speeds (1.5, 2.0 and 2.5 km/h) and three different plant height of cotton crop (1.0, 1.3 and 1.75 m) at Research Farm of the Department of Farm Machinery and Power Engineering, PAU, Ludhiana The spot size, area covered, droplet density and field capacity were recorded and analyzed. The droplet density varied from 185.67 to 386 drops/cm2 for 1.5 km/h and at forward speed of 2.5 km/h, the droplet density varied from 53.33 to 286 drops/cm2. The maximum field capacity was found to be 0.16 ha/h at forward speed of 2.5 km/h and at plant height of 1.0 m. The bioefficacy of the developed sprayer was also evaluated at Krishi Vigyan Kendra, Goneana and at farmer’s fields in village Goneana, district Shri Muktsar Sahib at three levels of forward speed of 1.5, 2.0 and 2.5 km/h and at three heights of crop i.e. 1.0, 1.3 and 1.75 m and compared with the knapsack sprayer. The population of whitefly was recorded before spray and after three, seven and ten days of spray. The maximum percentage reduction over control was found at forward speed of 2.0 km/h and at plant height of 1.0 and 1.3 m.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810047778
dc.keywordsNozzle, droplet density, bio-efficacy, area covered, spot size, field capacity, drop down sprayeren_US
dc.language.isoenen_US
dc.pages51en_US
dc.publisherPunjab Agricultural University, Ludhianaen_US
dc.research.problemDevelopment and evaluation of an engine operated walk type drop down sprayer for cotton cropen_US
dc.subFarm, Machinery and Poweren_US
dc.subjectnullen_US
dc.themeDevelopment and evaluation of an engine operated walk type drop down sprayer for cotton cropen_US
dc.these.typeM.Techen_US
dc.titleDevelopment and evaluation of an engine operated walk type drop down sprayer for cotton cropen_US
dc.typeThesisen_US
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