<![CDATA[The research aims to determine the best dose of the extract for growth and production Mustard Green ( Brassica juncea.L). The experiments conductedin the Agriculture Faculty, University of Riau from October to December 2011. Research used a completely randomized design with 5 treatments and 4 replications, namely T0: With out giving Tithonia diversifolia extract, T1: 1500 ml/plot, T2: 2000 ml/plot, T3: 2500 ml/plot and T4: 3000ml/plot. Parameters observed that plant height, leaf area, number of leaves, plant fresh weight, plant weight consumed per sample and root volume. The results showed Tithonia diversifolia extract dose 3000ml/plot is best for the growth and production of mustard green (Brassica junceae.L). Keywords: Plant Mustard Green, Liquid Fertilizer Complementary, Tithonia diversifolia]]>
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