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008			111010s1992 th uu|m rtt 0| a1eng d
035			_a.b10350652
099		9	_aAIT Thesis no.AE-92-40
100	1		_aTariq, Muhammad
245	1	0	_aImprovement of a fertilization system for corn through control of the nutritional status of plants
260			_aBangkok : _bAsian Institute of Technology, _c1992
300			_a63 leaves
490	1		_aThesis ; _vno. AE-92-40
500			_aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development
502			_aThesis (M.Sc.) - Asian Institute of Technology, 1992
520			_aA field experiment on corn crop was conducted on acid-sulphate soil at Agricultural Systems farm at Asian Institute of Technology, Bangkok from January - May 1882 . It focused on (i) improving the fertilization system mod e l for corn by providing additional data on yield response to different N and P application rates, (ii) determining the synergistic and antagonistic effects of N, P, and K through plant analysis. The experiment complete block design N and P resulting in and P were Nl , NZ, N3 P3 (50 kg, 125 kg and was laid- out in a factorial randomized with three replications at three levels of 8 treatment combinations. The levels of N (50 kg, 150 kg and 250 kg N/ha) and Pl, P2, 200 kg P/ha) respectively . The above-ground plant parts were N, P, and K six. times during the entire P concentration was corrected at a fixed of 5 gm/plant. This established the developing the preliminary diagnosis and A synergistic effect was found among N, u se of N a nd P resulted in antagonism. sampled and analysed for growth period. The N and dry matter weight level basis for testing and yield prognosis models. P, and K but imbalanced Results from this experiment we re in agreement with the results of Amit (1890), Sumitrai (1889), Krishda (1988) , Labhsetwar (1878) and Lawongsa (1879). However, new areas were revealed in the correction models from the n ew experimental results. Yield prognosis models for N and P were broadened at the yield level of 7.60 ton/ha, which was the highest among all previous experiments conducted in connection with t his fertilization system model. Predicted yield based on diagnosis and yield prognosis models was very near to the obtained yield , which further substantiated the reliability and accuracy of the models.
650		0	_aPlants _xNutrition
650		0	_aFertilization of plants
700	1		_aNielsen, Jens Moller, _eChairperson
700	1		_aGartner, J. A., _eExamination Committee
700	1		_aSumitra Poovarodom, _eExamination Committee
710	2		_aThe Government of Japan, _eScholarship Donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. AE-92-40
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B16594
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