| Author | Lilik Sutiarso |
| Call Number | AIT Thesis no.AE-95-07 |
| Subject(s) | Agricultural systems--Indonesia--Yogyakarta
|
| Note | A thesis submitted in partial fulfilment of the requirements
for the degree of Master of Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | This study was undertaken to develop a computer program package for improving fanning system that was focused in the water availability analysis, the optimizing of agricultural power and selected equipment and the sensitivity analysis. The computer programs for all models were developed and written in FoxBASE 2+ command language. For the primary data, a farm survey was conducted in Sleman Regency, Yogyakarta Province from January to March 1995. The sixty (60) household farms in 6 (six) districts were investigated which were grouped into animal-based and tractor-based farms. Three databases were obtained from the farm survey i.e. climate, crop and power. All these databases can be appended, edited, deleted or displayed by the users through a menu of database management system (DBMS). They were used to evaluate the utility of the computer programs as input data. The information system calculates the amount of monthly water surplus and deficit, the optimum number of agricultural power (animal or power tiller) and its matching implement required and also change in the net return· of crop production system due to the change of input variables such as crop price, yield, production material cost, etc. The system output for each analysis can be presented in three options i.e. by screen, printer and file that can be accessed to another language. The total annual water surplus in the study area was found to be 792 mm that reached from November to April and water deficit was 355 mm from May to October. There is also surplus situation of number of animal-drawn and local equipment for land preparation in each district, but deficiency in number of power tiller and it's matching tillage equipment. The sensitivity analysis indicated that yield and crop price are the most significant factor in determining the net return of the crop production system. |
| Year | 1995 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Salokhe, Vilas M.; |
| Examination Committee(s) | Gee-Clough, D.;Upasena, S.H.; |
| Scholarship Donor(s) | The Government of Austria; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1995 |