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Post-harvest technologies have been produced rapidly, but not at all have been adopted by farmers. Rice harvesting techniques with a group of farmers equipped with rice threshing machines can reduce crop losses and threshing to 5.9%. Moreover, the use of a striper type of rice harvester can reduce crop losses to between 2-3%. In this era of mechanization, there is increasing use of combine harvester at the farm level. This study aims to know the performance of harvest management with combine harvester and post-harvest rice at the farm level and to find out the amount of crop loss with combine harvester and post-harvest rice. The study was conducted in the second crop season in 2017 in Konawe District which is the center of wetland rice in Southeast Sulawesi Province. The results of the study indicated that in general the farmer groups managing the Combine Harvester were not equipped with an organizational structure (73%). The average combine harvester manager is 5-6 people consisting of operators, grain harvesters, grain collectors, and tailor sacks. Unit of agricultural equipment and machinery management (UPJA) works with launchers and harvesting equipment carriers. The ability to harvest in a day is 2 ha, with a harvest time of 3 hours per ha, with fuel consumption of 34.6 liters/ha. While the ability of harvested area in annuals is 35 ha on average. The average weight of yield loss by various planting methods is not too different which is about 0.129 - 0.136 kg. However, the highest percentage of yield loss is in the method of planting tabela (direct scattering) which is equal to 2.084%, this is influenced by the amount of yield obtained from the planting method. While the yield loss due to transportation between distances of less than 500 meters and above 500 meters does not differ much, namely an average of 0.18 kg and 0.21 kg, with an average of 0.2 percent of the average weight before transporting.

Study of harvesting losses for sustainable agricultural production in Southeast Sulawesi (a case study in Konawe district)