A systems engineering approach to support policy decision-making for Vietnam paddy production.

Le Cat, T 2007, A systems engineering approach to support policy decision-making for Vietnam paddy production., Doctor of Philosophy (PhD), Aerospace, Mechanical and Manufacturing Engineering, RMIT University.


Document type: Thesis
Collection: Theses

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Title A systems engineering approach to support policy decision-making for Vietnam paddy production.
Author(s) Le Cat, T
Year 2007
Abstract In the last decade, a 69 percent increase in the Vietnam paddy production resulted from a 33 percent improvement in productivity and a 27 percent expansion in cropping area. In this decade a 20 percent increase in paddy production, up to 39 million tons by 2010 from 32.5 million tons in 2000, is needed to respond to expected rice consumption and export. However, a reduction in the paddy cropping land is required in order to help improve the allocation of crops.
The overall objective of this research was to establish the levels of resources necessary to meet these targets. To achieve this, this research applied a process of systems planning in systems engineering with a linear programming model, based on considering the Vietnam paddy production system a nation-level goal-specified system in which farmers behave with their farm-level profits.
This research found the followings:
1) The target of 39 million tons of paddy could be reached by 2010 with a 10 percent reduction in the cropping area but a 2.6 percent increase in the irrigated area during the period 2000-2010.
2) Average paddy productivity could be improved up to 5.7 tons per hectare by 2010 through intensification of paddy production with increased use of seeds, fertilizers, protective chemicals and tractors of up to 185 kg, 563 kg, 21 USD and 136 horse-power.days per hectare, respectively.
3) Labour use would be reduced down to 93 person.days per hectare by the expansion of mechanical operation through the increased use of tractors.
4) With no supports and subsidies it would be difficult to have hybrid paddy varieties cropped for the commercial purpose because they produce less profits for farmers, compared with conventional ones.
5) The broadcasting seeding method would be desirable as it gives higher profits and is less labour intensive, compared with transplanting seeding.
6) Irrigated land would still be the most favourable environment for profitability.

Degree Doctor of Philosophy (PhD)
Institution RMIT University
School, Department or Centre Aerospace, Mechanical and Manufacturing Engineering
Keyword(s) Paddy production
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