Abstract This study aimed to know the difference of Brassica rapa var parachinensis growth influenced by the difference of phosphorus concentration. The method used in this study was a completely randomized design (CRD) with three different concentrations of phosphorus. There are treatment I (AB mix/as control), treatment II (AB mix + 12.6 grams sp-36), and treatment III (ab mix + 16,2 grams sp-36). The data were analyzed by ANOVA using model of CRD on the growth of Brassica rapa var parachinensis. The result of ANOVA analysis and duncan's test showed that the difference in phosphorus concentration significantly affect leaf number, plant height, root length, fresh weight, and dry weight. Mean separation test using Duncan’s at α=5% indicated that treatment III produced higher number of leaf number, plant height, root length, fresh weight, and dry weight than those of treatment I and treatment II. And treatment II tend to have worse than both of treatment.  Key words: Super Mini Hydroponic, Brassica rapa var parachinensis, Phosphorus, Growth, AB Mix
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