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This research aims for light education that affects the growth of stevia in hydroponics systems. Education consists of 2 experiments. Experimental 1st study of the light spectrum range that affects the growth of stevia in the hydroponics system. It consists of 3 experiments: 1) Light from the Sun (control) 2) white artificial light 3) Blue artificial light The results of the trial showed that the light from the Sun (control), which had a long wavelength range of 400-700 nanometers. It grows better than white artificial light and blue artificial light in all sides by the early height. Leaf length, width, width, bush Open-close leaf weight leaf Dry weight, leaves and leaves area Trial 2 Yeast dosage analysis All fungi and microorganisms consist of analysis of fresh, sweet grass leaves and dried sweet grass leaves, which have a statistically significant difference in value. Fresh sweet grass leaves with yeast content Fungus and microorganisms over dried sweet grass leaves. Based on experimental results, it is recommended to increase light intensity to increase the efficiency of plant growth and measure the leaf area should be isolated each in each experimental thing to get complete information, including the weight of fresh sweet grass and dried stevia, should be isolated each in each experimental thing.
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