Dr. Rajesh GoyalGill, Gagandeep Singh2024-04-022024-04-022023Gill, Gagandeep Singh (2023). Prototype Feasibility Evaluation of Tractor Operated Green Pea Crop Harvesting System (Unpublished M.Tech. thesis). Punjab Agricultural University, Ludhiana, Punjab, India.https://krishikosh.egranth.ac.in/handle/1/5810208009In Punjab, pea crop is cultivated in an area of 43,860 ha. Due to lack of mechanization for harvesting and threshing of green peas, farmers have to depend on labour for picking of pea pods. To increase the area under pea cultivation, there is a need of mono picking varieties of pea crop and machines for harvesting and threshing of pea crop. To access the mono picking characteristics of pea variety (PB-89), studies on physical characteristics (plant height, pod maturity, number of pods per plant, weight of pods per plant, weight of peas per pod, angle of repose and bulk density of green pea crop) with different sowing dates was observed. Efforts has been done by Punjab Agricultural University, Ludhiana for harvesting, threshing and depoding of green pea crop by developing tractor operated green pea crop harvester and thresher cum depoder. The developed tractor operated green pea crop harvester consists of header, conveyors, hydraulic motors & actuators, supporting roller and wiping roller, chain and sprockets unit and jack mechanism for fitting with tractor. As the green pea harvester moves in the field the rotating reel strips out the green pea crop and wiping roller conveys the green pea crop to conveyer. The pea crop harvester was evaluated in terms effective field capacity (ha/h), fuel consumption (l/h), crop left over by machine (%), machine throughput capacity (kg/h), damage to crop (%) and efficiency of machine (%) at different independent parameters like forward speed 1.26 km/h (S1) and 1.90 km/h (S2), reel rpm 240 rpm (RR1), 200 rpm (RR2) and 160 rpm (RR3) and number of fingers 18 (F1) & 25 (F2) mounted on reel of header. Forward speed showed significant effect on fuel consumption, effective field capacity, crop left by machine and efficiency of machine. The maximum efficiency (83.62%) of green crop harvester having minimum damage (2.29%) and minimum crop left in field (14.04%) was observed at a forward speed of 1.26 km/h (S1), number of fingers mounted on reel 25 (F2), and reel rpm 200 (RR2). Physical characteristics of pea variety shows that PB-89 variety cannot be harvested once as it matures in stages.EnglishThesis