000			03137cas a2200385 a 4500
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008			111005s1991 th uu|m rtt 0| a1eng d
035			_a.b10072287
099		9	_aAIT Thesis no. AE-91-43
100	0		_aNguyen Manh Trung
245	1	3	_aAn economic evaluation of the major rice varieties in the Red River Delta of Vietnam
260			_aBangkok : _bAsian Institute of Technology, _c1991
300			_a92 p. + _e1 online resource
490	1		_aThesis ; _vno. AE-91-43
500			_aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Science
502			_aThesis (M.Sc.) - Asian Institute of Technology, 1991
520			_aDue to the policy reform in agricultural economic management, the increasing· of input investments into production, and the application of new advanced technologies as modern rice varieties, the rice output of Vietnam has been increasing. This study evaluates some major rice varieties popularly grown in the Red River Delta which is one of the biggest rice cultivated area of the country. The selected rice varieties of IR8, V18, V15, CR203 in the four different agro-ecological zones are evaluated based on the experimental data collected from research station. The fluctuation of yield in the period of 1985-1989 were analysed to determine the stability of performance in each location. The yield across the four regions were analysed to determine the adaptability of each variety. From the market prices of paddy and inputs last year (1990), optimum input levels of fertilizer use are estimated. The results IR8 is better cultivated in the irrigated area of Hanoi, Haihung, Thaibinh in the dry season if the price of nitrogen fertilizer increase CR203 would be better. In the lowland, degraded areas CR203 is preferable in both seasons and for saline area in the wet season while V15 is more stable and economical in the dry season of saline area only. It is suggested that the rice scientists in Vietnam should pay more attention on new research objective in order to cope with the trend on price of paddy and nitrogen fertilizer in the near future.
650		0	_aRice _zVietnam _zRed River Delta _xVarieties
700	0		_aSuthad Setboonsarng, _eChairperson
700	1		_aUpasena, S.H., _eExamination committee
700	0		_aSumitra Poovarodom, _eExamination committee
710	2		_aGovernment of Australia, _eScholarship donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. AE-91-43
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B17292
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