<![CDATA[Nannochloropsis oculata microalgae is often cultivated for natural food. However, vegetable fat which is contained in this microalgae can be used as bioenergy. Different nutrients can give different effects on population growth rate and fat contain of this microalgae. This experiment?s aims are to know the effect of different types of fertilizer on population growth rate and fat contain of N. oculata microalgae. This is an experimental research with density of N. oculata is 2 × 106 cell/ml as the target of research which is cultured in different types of fertilizers treatment, these are technical fertilizer from BBAP Situbondo (TG), Walne, Guillard and Ryther Modified F and Allen-Miquel fertilizers. Each nutrient fertilizer was did a Nitrogen unsure equivalency with macro nutrient in technical fertilizer (control treatment). The equivalent is 0.01 mol / liter. The design of this research is is a Randomized Completely Block Desaign with four treatment and six replication, so there are 24 units research sample. The data in this research are the population growth rate and the fat contain of N. oculata. Population growth rate data is tested its normality by Kolmogorov-Smirnov Normality, then it is analyzed by One-Way Analisys of Variance test and continued by LSD. The analysis is described descriptively, while the data of N. oculataI?s fat contain were analyzed by descriptive analysis. The results of this study indicate that the giving of different types of fertilizer effect on population growth rate and fat contain of N. oculata. Treatment of giving Allen-Miquel fertilizer is the best treatment with the average population growth rate is 0.393 and the average fat contain is 45% of 3 grams sample or 1.35 grams. Based on the results above, it can be concluded that Allen-Miquel fertilizer can raise the population growth rate and fat contain of N. oculata that used for bioenergy.]]>
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