04302nam a2200409 4500 20260818085852.0 080598 th eng .b10184429 AIT Thesis no.AE-93-6 Chandraratne, I. W. D. T. A decision support system for crop planning and equipment selection Bangkok : Asian Institute of Technology, 1993 71 leaves : ill. Thesis ; no. AE-93-6 Thesis (M.Eng.) - Asian Institute of Technology, 1993 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering. Stand-alone executable computer software has been developed for the purpose of crop planning and equipment selection in crop production based on the farming situation in Sri Lanka using FoxPro 2.0 Command Language. The program extracts the comprehensive information about the farming situation from three data files: firs t , general socio-economic factors, second, the commonly grown crops in the region and associated inputs and outputs with their operation calendars and third, all the equipment available to perform these operations with necessary details. All these data can be checked or edited by the user. In addition, the user can add or remove the records to/from these two databases when it necessitates modifications usually coming with time. The software first suggests the most profitable crop-area combination within the availability of total land, monthly la bor, seasonal operating capital and seasonal water s upply which are specified by the user. Using the resulting crop plan as the input or a user-defined input, it predicts the optimum power syst em feasible to the situation and the best combinations of human, animal- and power-driven equipment for various operations. Finally, based on the selected main power system, it produces a report which includes total output, cost and profit in annual, seasonal and per unit crop area bases. Also, it gives the equipment system for all operations and monthly labor demand for all the farming activities. This computer program is developed with special attention to Sri Lankan situation. Therefore, it necessitates initial modifications to use in another environment. The program was evaluated with two farms in Sri Lanka having 1.0 ha and 2.0 ha holding sizes with canal irrigation syst em and a hypothetical farm using water pump. Sensitivity of the price yield of rice which is the staple crop was also examined to see how the optimum crop plan is effected by t he typical variation of these two parameters. The optimum equipment system was not effect ed by fluctuations of yield and prices since optimization is being done based on the least cost system. Results of the program are close to how farmers are operating in the real situation. The optimal recommendations for the equipment systems for the farmer operating in 2.0 ha farm show slight deviation from what the farmer currently owns since the program considers only farm a rea owned by the farmer excluding custom area. Moreover, the break-even hours and area for all the equipment used in custom hiring are provided in the report. Decision support systems Agricultural machinery Singh, Gajendra, Chairperson Clough, David Gee, Examination committee Gupta, Chandra P., Examination committee Salokhe, Vilas M., Examination Committee Japanese Government, Scholarship donor Asian Institute of Technology. Thesis ; no. AE-93-6 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B15997 .b10184429 mnait x 240411 2 951012 m a x 2 mnait mnarc 22 40 Barcode : 30050120577993 CREATED : 2014-02-18 RECORD # : i12765879 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120376156 CREATED : 2016-01-06 RECORD # : i13010463 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 26054 26054 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.AE-93-6 30050120577993 2026-08-18 08:58:52 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.AE-93-6 30050120376156 2026-08-18 08:58:52 2026-08-18 40