STBA

Hey, I’m Stefan!

I’m currently a senior at Jakarta Intercultural School, hoping to make an impact in the community. I enjoy challenging myself in finding solutions to complex environmental issues around the world.

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Developing STEBA, a fertilizer contains of high nitrogen from water hyacinth

The results are confirmed by a renowned national third-party laboratory and it contains of desirable nutrient elements, such as Organic Carbon (31.79%), Nitrogen (1.80%), P2O2 (0.69%), and K2O (4.64%).

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