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- 저자 : 金容?(Yong-Ro Kim) (검색결과 1 건)
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김 養殖網의 파래 驅除를 위한 有機酸 製劑의 開發 硏究
徐鎔澤,金容雄,鄭美羅,金廣植,朴魯東 全南大學校 農業科學技術硏究所 1996 農業科學技術硏究 Vol.31 No.-
For control of green algae (Enteromorpha linza) from the cultivating laver (Porphyra) nets, this study has been conducted to develop organic acid algicide formula which contain organic acids as main components. 1. Among 50 organic compounds tested, 12 organic acids were most effective in induction of the color chango of the blades of green algae and Porphyra when the blades were immersed in 0.25-3% organic acid seawater solutions. The pH of the 0.25-3% organic acid seawater solutions were measured. 2. The photosynthetic activities of green algae were strongly inhibited in 1.5% organic acid seawater solutions of citric acid, malic acid and oxalic acid, while those of Porphyra were much less affected. 3. Nitric acid, ammonium chloride and phosphoric acid were selected as synergists to strengthen the algicidal effect of the selected organic acids. 4. 10 algicidal formulas were formulated, which contained citric acid, malic acid or oxalic acid as major components, and phosphoric aicd, nitric aicd or ammonium chloride as synergists. Their effectiveness in the induction of color change and the photosynthetic activities of the blades of green algae were tested and compared with those of the commercial formulas. 5. The most effective application procedure was found out the spray of the organic acid formula solutions to the laver nets immediately after exposure from seawater and the returning to seawater 1 hr after.
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