MAHADEVAIAH, G SRAKSHATH, L. GOWDA2016-11-302016-11-3041146Th-10343http://krishikosh.egranth.ac.in/handle/1/88378The present study was conducted in Mandya district of Karnataka to analyze the economics of farm mechanization in rice cultivation with sample size of 120 respondents. The results indicated that the small farmers used more human labour (43.71 man days) than large farmers (37.72 man days). The total bullock labour used by small farmer (5.17 BPD) was more than large farmers (1.03 BPD). The total machine labour used by large farmers (5.62 hours) was more than small farmers (2.38 hours) in rice cultivation. The total cost of cultivation of rice in high mechanized farmers (` 26732.73 per acre) was higher than the cost of cultivation of low mechanized farmers (` 24068.36 per acre). The net return obtained by high mechanized farmers (` 8,562 per acre) was higher than the low mechanized farmers (` 6,359 per acre). The returns per rupee invested were higher in high mechanized farmers (1.32) compared to low mechanized farmers (1.26). The net gain due to mechanized method of harvesting using combine harvester was ` 450. The major problems encountered in farm mechanization in rice cultivation were high investment on farm machineries, not suitable for small sized holders, fodder loss due to use of combine harvester for harvesting and custom hiring was another major problem due high hiring charges of farm equipments or machineries.enThesis