| Author | Thatsaka Saphangthong |
| Call Number | AIT Thesis no.AC-99-34 |
| Subject(s) | Organic farming--Laos--Vientiane
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| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. AC-99-34 |
| Abstract | The yields attained on experimental stations are much higher than different group of farm levels, providing a potential for increasing the rice production in Lao PDR. This study was conducted to identify the potential rice yield constraints by using the data from farm survey in comparison to experimental station data and simulation data to support the Ministry of Agriculture and forestry in decision making, regarding rice research and increaseing rice production. This study focused on gap of lowland rice yield among three groups of farmer, non-irrigated farm, irrigated farm and extension farm, located in Say Tha Ni district, Vientiane province, Lao PDR gained by farmer interviews. In addition, the potential yield gained from National Agricultural Research Center (NARC) and from simulation model were compared with actual yield of farm survey. The evaluation of potential yield gap was carried out and discuss in terms of agricultural practices and socio-economic. Multi-regression model was used for data analysis. There was the significant difference of potential yield gained from different farm sites. Highest potential yield was gained from the simulation model. Yield was lower for experiment (NARC and LAO-IRRI project) research station, extension farm, irrigated farm and non irrigated farm, respectively. Yield gap was established from significant difference among the yield of simulate, experiment (NARC and_LAO-IRRI project) and_actuaLfamL gmups ____ _ Fertilizers, rice varieties, hydrology, cropping pattern, transplanting, insecticide, harvesting and threshing were constraints to potential yield and established yield gap. Beside these factors, another important constraint was the financial status, dominantly affecting the other constraints, contributing to yield gap. |
| Year | 1999 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. AC-99-34 |
| 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, Conservation and Rural Development (AC) |
| Chairperson(s) | Hansen, G. K.; |
| Examination Committee(s) | Demaine, H. ;Shivakoti, G. P.; |
| Scholarship Donor(s) | Swedish International Development Cooperation Agency (Sida); |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1999 |