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The results of the analysis and evaluation of the growth and development of water hyacinth in experimental locations by the ecological fixation method of vegetable development in Sai Gon river basin - Thu Dau Mot, Binh Duong showed that after 84 days of experiment, the water hyacinth in different locations had the growth of stem, roots, leaves and buds. However, this growth at other locations is different. Statistical results also showed that the water quality indexes of BOD5, COD, total nitrogen, total phosphorus were highly correlated with the increase in the raw weight of the hyacinth. In which total nitrogen, total phosphorus is the largest correlation. | Assessing the correlation of the water environmental quality and the growing ability of the water hyacinth
