<![CDATA[This study aims to determine the effect of different doses of phosphate fertilizer on the gowth of phytoplankton. The research is based on a completely randomized design with 6 treatments and 3 replications. Treatments were applied as follows: A: 0 g / l, B: 0.25 g / l, C: 0.5 g / l, E: 1 g / l, F: 1.25 g / l. Data previously conducted analysis of variance test for normality and homogeneity of variance analysis test is then performed. While the data of water quality variables were analyzed descriptively. Results of any treatment is A: Peak phytoplankton gowth occurred at 15.00 hours to 3 days (168x104)cells, B: Peak phytoplankton gowth occurred at 15:00 hours today to 3 (180x104) cells, C: Peak phytoplankton gowth occurred at 12:00 hours day 3 (226x104) cells, D: Peak phytoplankton gowth occurred at 12:00 hours to 4 days (250x104 ) cells, E: Peak phytoplankton gowth occurred at 12.00 hours to 4 days (346x104) cells, F: Peak of phytoplankton gowth occurred at 12:00 hours to 3 days (242x104) cells. Results of the analysis showed that different doses of the treatment effect is highly significant to the gowth of phytoplankton. Medium quality water throughout the study is still in the range of viable ie 29 oC - 30 oC, DO 6,1 – 7,2 and pH 7- 8.Key Words : Phytoplankton Gowth, Phosphate Fertilizers, Dose ]]>
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