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Experiments

Protocols

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2018

The Newcastle Team

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Stage Three

Test

Substantial time was spent carrying out extensive research, both inside and outside the lab, in order to optimise the system for the target audience. This included speaking with organisations and individuals in industry who are involved with hydroponics-based systems or those who may be interested in working with such a system in the future. Some of the individuals we liaised with include Chris Tapsell, the Research Director of KWS UK, one of the biggest seed companies in the world, and Richard Ballard, co-founder of Growing Underground in London where they hydroponically grow micro greens and salad leaves 33 metres below the ground. These potential clients helped us focus our product so that it can better meet the needs of our clients.

In addition to gathering external opinion on our system, we also did our own tests on system performance. This included tests to verify the optimal light intensity, wavelength and positioning. The graph below illustrates how the light intensity (measured in lux) varies over time (in seconds) when the system is operated under various wavelengths of light. The black line indicates the system running with the rainbow function loaded which cyclically varies the light wavelength. As the results showed that blue, red and purple light and provided the most lux we are currently using these in the system but plan to use the rainbow function too in future to see how this affects growth or the aesthetics of the plant.