03811nam a2200457 4500 20260818090759.0 130598 th eng .b11511084 AIT Thesis no. AE-95-01 Srey Bun Doeun Development of an azolla combine harvester Bangkok : Asian Institute of Technology, 1995 53 leaves + 1 online resource Thesis ; no. AE-95-1 A thesis submitted in partial fulfillment of the requirement for the Degree of Master of Engineering Thesis (M.Eng.) - Asian Institute of Technology, 1995 A walking type of a self-propelled azolla combine harvester was developed and tested for its field performance. The harvester is powered by a diesel engine (8.6 kw) of a Kubota two wheel tractor (Model NC131). It has two steel lugged wheels for improved traction. The harvester consists of a v-shaped float made of aluminum skids and side wall made of plastic net. The floats assist in collection of floating azolla fern which is pushed by a reel made- up of aluminum bats. The azolla mass is lifted by an inclined chain conveyor made of plastic net. The inclined conveyor delivers the azolla mass into an aluminum box which has a slat type conveyor at its bottom. This slat type conveyor carries the azolla mass to the rear end of the machine. The flow of azolla at the rear is controlled by a shutter mechanism and azolla mass is distributed across the width by a set of distributing blades. The effective field capacity of the machine is 853 kg of azolla per hour, while the machine is stationary at the edge of the field and azolla mass is pushed towards the machine by a flexible plastic tube. The effective field capacity of the mobile machine when harvesting azolla in 10-20 cm deep water was found to be 396 kg/h. The azolla mass was distributed by the machine at the average rate of 8 t/ha with 19% coefficient of variation. The cost of azolla nitrogen obtained by using the harvester was found to be 3.17 times cheaper than the cost of nitrogen from urea. Many developing countries may reduce the foreign exchange required to import chemical nitrogenous fertilizers, if they produce and apply azolla locally. Azolla Harvesting Harvesting machinery Gupta, C.P., Chairperson Weber, Karl E., Examination committee Salokhe, Vilas M., Examination Committee Upasena, S.H., Examination committee The Government of Japan and the Swedish International Development Agency, Scholarship donor Asian Institute of Technology. Thesis ; no. AE-95-1 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B14929 .b11511084 mnait v 250317 0 960709 m a v 0 mnait mnait mnarc mnarc 20 14 Barcode : 30050004034871 CREATED : 1995-09-02 RECORD # : i11797940 LPATRON : 1017842 LCHKIN : 2005-09-28 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 2 TOT RENEW : 1 Barcode : 30050004034889 CREATED : 1995-09-02 RECORD # : i11797952 LPATRON : 1017842 LCHKIN : 2005-04-28 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 7 TOT RENEW : 5 Barcode : 30050120371819 CREATED : 2016-02-06 RECORD # : i13011959 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120911622 CREATED : 2020-10-01 RECORD # : i13246586 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 29119 29119 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. AE-95-01 30050004034871 2026-08-18 09:07:59 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. AE-95-01 30050004034889 2026-08-18 09:07:59 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. AE-95-01 30050120371819 2026-08-18 09:07:59 1 2026-08-18 14 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. AE-95-01 30050120911622 2026-08-18 09:07:59 3 2026-08-18 20