TY - JA AU - Md Abdul Matin AU - Roy,K.C. AU - Ahmmed,S. AU - Wohab,M.A. AU - Amin,M.N. TI - Modification of BARI power tiller operated reaper into self-propelled reaper for harvesting paddy and wheat SN - 0258-7122 PY - 2006/// CY - Bangladesh PB - Bangladesh Agricultural Research Institute KW - Tillage equipment KW - AGROVOC KW - Harvesters KW - Rice KW - Wheat N1 - Peer review N2 - Power tiller mounted reaper has some limitations for operation in the field. Due to its heavy weight and length, it8 maneuverability is not easy. It is difficult to turn in headlands during operation and not suitable for wet lands. Soil compaction is more than a power tiller unit. It is not possible to cross fields or ditches by hanging to overcome these limitations, BARI power tiller operated reaper was modified into a BARI self-propelled reaper (SP reaper). The field performance of the reaper was satisfactory. It is lightweight and 5-6 people can carry the reaper over fields, ditches or levees/bunds by hanging. It can be operated both in dry and wet lands (even in submerged soil), except in clay soil as in Gazipur. Turning in headlands is easy. It has an average field capacity of 0.18 ha/hr for paddy and 0.27 ha/hr for wheat. Operational costs of harvesting were Tk. 245/ha for paddy and Tk. 157/ha for wheat (fuel and labour only). Total costs of harvesting paddy and wheat were Tk. 392/ha and Tk. 261/ha (fixed and variable cost), respectively. The reaper has a break-even use of 3.5 ha/year and 3.4 ha/year for paddy and wheat, respectively T2 - Bangladesh Journal of Agricultural Research ER -