DESIGN, DEVELOPMENT AND EVALUATION OF INTRA CANOPY SPRAYER FOR FIELD CROPS

Simple item page
dc.contributor.advisorCHAIRMAN
dc.contributor.authorSATYANARAYAN
dc.date.accessioned2020-06-06T06:34:47Z
dc.date.available2020-06-06T06:34:47Z
dc.date.issued2016-06-30
dc.description.abstractThe present application of pesticides in an improper method results in poor penetration of the pesticide to desired locations where insects lay their eggs or hide in other stages of their growth. To improve spray penetration throughout plant canopy, a need was felt to adopt air assistance boom spraying technique to cover a whole crop canopy, air assisted intra canopy sprayer was designed and developed for field crops. The air velocity obtained at nozzle outlets were found to vary from 8.50 to 9.20 m s-1 at 1250 rpm, 10.15 to 11.30 m s-1 at 1450 rpm and 12.50 to 14.20 at 1620 rpm of blower shaft speed. The optimum blower shaft speed was found to be 1620 rpm for better spraying operation to avoid vibration. Hollow cone nozzle exhibited minimum discharge rate of 12.9 l min-1 and maximum discharge rate was recorded as 55.80 l min-1 by flat fan nozzle. It was also observed that the spray uniformity ranged in between 42.56 per cent to 83.12 per cent, which is within the acceptable range of uniformity. The maximum droplet size was 232 µm by solid cone nozzle and minimum was 202 µm by hollow cone nozzle. Droplet density varied for air velocities and operating pressures ranging from 74 to 138 No’s cm-2 for three different types of nozzles tested., The average field capacity of intra canopy sprayer were found to be 0.80 ha h-1 and 0.81 ha h-1 for cotton and pigeon pea crops respectively at forward speed of 2.6 km h-1 and the swath width of spray was found as 3260 mm and 2910 mm respectively for cotton and pigeon pea crops. The average chemical quantity of chemical solution for cotton and pigeon pea crops were 1950 l ha-1 1820 l ha-1 respectively.en_US
dc.identifier.citation200en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810147138
dc.language.isoenen_US
dc.pages217en_US
dc.publisherUNIVERSITY OF AGRICULTURAL SCIENCES, RAICHURen_US
dc.research.problemDESIGN, DEVELOPMENT AND EVALUATION OF INTRA CANOPY SPRAYER FOR FIELD CROPSen_US
dc.subFarm, Machinery and Poweren_US
dc.themeDESIGN, DEVELOPMENT AND EVALUATION OF INTRA CANOPY SPRAYER FOR FIELD CROPSen_US
dc.these.typePh.Den_US
dc.titleDESIGN, DEVELOPMENT AND EVALUATION OF INTRA CANOPY SPRAYER FOR FIELD CROPSen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 2 of 2
No Thumbnail Available
Name:
Compiled Thesis-Ph.D. (Ag.Engg.)-PHD13AEG3026.pdf
Size:
6.63 MB
Format:
Adobe Portable Document Format
Description:
Ph.D
Download
No Thumbnail Available
Name:
Abstract -PHD.doc
Size:
27.5 KB
Format:
Microsoft Word
Description:
Ph.D
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Thesis